Publications Group Wulfhekel

Observation of the sliding phason mode of the incommensurate magnetic texture in Fe/Ir(111)
Yang, H.-H.; Desplat, L.; Kravchuk, V. P.; Hervé, M.; Balashov, T.; Gerber, S.; Garst, M.; Dupé, B.; Wulfhekel, W.
2024. npj Quantum Materials, 9 (1), Art.-Nr.: 54. doi:10.1038/s41535-024-00664-0  

Bosonic excitation spectra of superconducting BiSrCaCuO and YBaCuO extracted from scanning tunneling spectra
Gozlinski, T.; Henn, M.; Wolf, T.; Le Tacon, M.; Schmalian, J.; Wulfhekel, W.
2024. Journal of Physics: Condensed Matter, 36 (17), Art.-Nr.: 175601. doi:10.1088/1361-648X/ad1ca8  

Promoting p -based Hall effects by p−d−f hybridization in Gd-based dichalcogenides
Zeer, M.; Go, D.; Schmitz, P.; Saunderson, T. G.; Wang, H.; Ghabboun, J.; Blügel, S.; Wulfhekel, W.; Mokrousov, Y.
2024. Physical Review Research, 6 (1), 013095. doi:10.1103/PhysRevResearch.6.013095  

Hot luminescence from single-molecule chromophores electrically and mechanically self-decoupled by tripodal scaffolds
Rai, V.; Balzer, N.; Derenbach, G.; Holzer, C.; Mayor, M.; Wulfhekel, W.; Gerhard, L.; Valášek, M.
2023. Nature Communications, 14 (1), Art.-Nr.: 8253. doi:10.1038/s41467-023-43948-y  

Band-resolved Caroli–de Gennes–Matricon states of multiple-flux-quanta vortices in a multiband superconductor
Gozlinski, T.; Li, Q.; Heid, R.; Nemoto, R.; Willa, R.; Yamada, T. K.; Schmalian, J.; Wulfhekel, W.
2023. Science Advances, 9 (36), Art.-Nr.: eadh9163. doi:10.1126/sciadv.adh9163  

Direct Probing of a Large Spin–Orbit Coupling in the FeSe Superconducting Monolayer on STO
Zakeri, K.; Rau, D.; Jandke, J.; Yang, F.; Wulfhekel, W.; Berthod, C.
2023. ACS Nano, 17 (10), 9575–9585. doi:10.1021/acsnano.3c02876  

Direct evidence of a charge depletion region at the interface of van der Waals monolayers and dielectric oxides: The case of superconducting FeSe/STO
Zakeri, K.; Rau, D.; Wettstein, J.; Döttling, M.; Jandke, J.; Yang, F.; Wulfhekel, W.; Schmalian, J.
2023. Physical Review B, 107 (18), Art.-Nr.: 184508. doi:10.1103/PhysRevB.107.184508  

Spatial variations of conductivity of self-assembled monolayers of dodecanethiol on Au/mica and Au/Si substrates
Skolaut, J.; Tepper, J.; Galli, F.; Wulfhekel, W.; van Ruitenbeek, J. M.
2023. Beilstein Journal of Nanotechnology, 14, 1169–1177. doi:10.3762/bjnano.14.97  

Proximity-Induced Superconductivity in Atomically Precise Nanographene on Ag/Nb(110)
Liu, J.-C.; Pawlak, R.; Wang, X.; Chen, H.; D’Astolfo, P.; Drechsel, C.; Zhou, P.; Häner, R.; Decurtins, S.; Aschauer, U.; Liu, S.-X.; Wulfhekel, W.; Meyer, E.
2023. ACS Materials Letters, 5 (4), 1083–1090. doi:10.1021/acsmaterialslett.2c00955  

Observation of Exchange Interaction in Iron(II) Spin Crossover Molecules in Contact with Passivated Ferromagnetic Surface of Co/Au(111)
Chen, H.; Yang, H.-H.; Frauhammer, T.; You, H.; Sun, Q.; Nagel, P.; Schuppler, S.; Gaspar, A. B.; Real, J. A.; Wulfhekel, W.
2023. Small, 19 (22), Art.-Nr.: 2300251. doi:10.1002/smll.202300251  

Activating Electroluminescence of Charged Naphthalene Diimide Complexes Directly Adsorbed on a Metal Substrate
Rai, V.; Gerhard, L.; Balzer, N.; Valášek, M.; Holzer, C.; Yang, L.; Wegener, M.; Rockstuhl, C.; Mayor, M.; Wulfhekel, W.
2023. Physical Review Letters, 130, Art.-Nr.: 036201. doi:10.1103/PhysRevLett.130.036201  

Layer-resolved magnetic moments in N-surfactant assisted FeNi ordered alloy thin films
Kawaguchi, K.; Miyamachi, T.; Gozlinski, T.; Iimori, T.; Takahashi, Y.; Hattori, T.; Yamamoto, K.; Koitaya, T.; Iwayama, H.; Ishiyama, O.; Nakamura, E.; Kotsugi, M.; Wulfhekel, W.; Yokoyama, T.; Komori, F.
2022. Japanese Journal of Applied Physics, 61 (SL), Art.-Nr.: SL1001. doi:10.35848/1347-4065/ac66c1 

Spin and orbital transport in rare-earth dichalcogenides: The case of EuS
Zeer, M.; Go, D.; Carbone, J. P.; Saunderson, T. G.; Redies, M.; Kläui, M.; Ghabboun, J.; Wulfhekel, W.; Blügel, S.; Mokrousov, Y.
2022. Physical Review Materials, 6 (7), Art.Nr. 074004. doi:10.1103/PhysRevMaterials.6.074004 

Friedel oscillations and superconducting gap enhancement by impurity scattering
Stosiek, M.; Baretzky, C.; Balashov, T.; Evers, F.; Wulfhekel, W.
2022. Physical Review B, 105 (14), Art.-Nr.: L140504. doi:10.1103/PhysRevB.105.L140504 

Magnetic domain walls of the van der Waals material Fe3GeTe2
Yang, H.-H.; Bansal, N.; Rüßmann, P.; Hoffmann, M.; Zhang, L.; Go, D.; Li, Q.; Haghighirad, A.; Sen, K.; Bluegel, S.; Le Tacon, M.; Mokrousov, Y.; Wulfhekel, W.
2022. 2D Materials, 9 (2), Art.Nr. 025022. doi:10.1088/2053-1583/ac5d0e 

Strong effect of crystal structure on the proximity effect between a superconductor and monolayer of cobalt
Mougel, L.; Buhl, P. M.; Li, Q.; Müller, A.; Yang, H.-H.; Verstraete, M. J.; Simon, P.; Dupé, B.; Wulfhekel, W.
2022. Applied Physics Letters, 121 (23), Art.Nr. 231605. doi:10.1063/5.0130313  

Indirect Spin-Readout of Rare-Earth-Based Single-Molecule Magnet with Scanning Tunneling Microscopy
Frauhammer, T.; Chen, H.; Balashov, T.; Derenbach, G.; Klyatskaya, S.; Moreno-Pineda, E.; Ruben, M.; Wulfhekel, W.
2021. Physical review letters, 127 (12), Article no: 123201. doi:10.1103/PhysRevLett.127.123201  

Resolving the spin polarization and magnetic domain wall width of (Nd,Dy)FeB with spin-polarized scanning tunneling microscopy
Miyamachi, T.; Sürgers, C.; Wulfhekel, W.
2021. Applied physics express. Letter, 14 (11), Art.Nr. 115504. doi:10.35848/1882-0786/ac2a56  

Synthesis and Surface Behaviour of NDI Chromophores Mounted on a Tripodal Scaffold: Towards Self-Decoupled Chromophores for Single-Molecule Electroluminescence
Balzer, N.; Lukášek, J.; Valášek, M.; Rai, V.; Sun, Q.; Gerhard, L.; Wulfhekel, W.; Mayor, M.
2021. Chemistry - A European Journal, 27 (47), 12144–12155. doi:10.1002/chem.202101264  

Addressing a lattice of rotatable molecular dipoles with the electric field of an STM tip
Frauhammer, T.; Gerhard, L.; Edelmann, K.; Lindner, M.; Valášek, M.; Mayor, M.; Wulfhekel, W.
2021. Physical Chemistry Chemical Physics, 23 (8), 4874–4881. doi:10.1039/d0cp06146h  

Interplay between point symmetry, oxidation state, and the Kondo effect in 3d transition metal acetylacetonate molecules on Cu(111)
Chen, H.; Frauhammer, T.; Sasaki, S.; Yamada, T. K.; Wulfhekel, W.
2021. Physical Review B, 103 (8), Art.-Nr.: 085423. doi:10.1103/PhysRevB.103.085423 

Elektronische Bauteile aus Einzelmolekülen
Wulfhekel, W.; Evers, F.
2020. Physik in unserer Zeit, 51 (6), 283–289. doi:10.1002/piuz.202001586  

Boosting Light Emission from Single Hydrogen Phthalocyanine Molecules by Charging
Rai, V.; Gerhard, L.; Sun, Q.; Holzer, C.; Repän, T.; Krstić, M.; Yang, L.; Wegener, M.; Rockstuhl, C.; Wulfhekel, W.
2020. Nano letters, 20 (10), 7600–7605. doi:10.1021/acs.nanolett.0c03121  

Emergence of Nontrivial Low‐Energy Dirac Fermions in Antiferromagnetic EuCdAs
Ma, J.; Wang, H.; Nie, S.; Yi, C.; Xu, Y.; Li, H.; Jandke, J.; Wulfhekel, W.; Huang, Y.; West, D.; Richard, P.; Chikina, A.; Strocov, V. N.; Mesot, J.; Weng, H.; Zhang, S.; Shi, Y.; Qian, T.; Shi, M.; Ding, H.
2020. Advanced materials, 32 (14), Art.-Nr. 1907565. doi:10.1002/adma.201907565 

Instability of skyrmions in magnetic fields
Mougel, L.; Buhl, P. M.; Nemoto, R.; Balashov, T.; Hervé, M.; Skolaut, J.; Yamada, T. K.; Dupé, B.; Wulfhekel, W.
2020. Applied physics letters, 116 (26), Art.Nr. 262406. doi:10.1063/5.0013488 

Microscopic charging and in-gap states in superconducting granular aluminum
Yang, F.; Gozlinski, T.; Storbeck, T.; Grünhaupt, L.; Pop, I. M.; Wulfhekel, W.
2020. Physical review / B, 102 (10), Art.-Nr. 104502. doi:10.1103/PhysRevB.102.104502 

Influence of Co bilayers and trilayers on the plasmon-driven light emission from Cu(111) in a scanning tunneling microscope
Edelmann, K.; Wilmes, L.; Rai, V.; Gerhard, L.; Yang, L.; Wegener, M.; Repän, T.; Rockstuhl, C.; Wulfhekel, W.
2020. Physical review / B, 101 (20), Art.Nr. 205405. doi:10.1103/PhysRevB.101.205405  

Conductance and adhesion in an atomically precise Au-Au point contact
Gerhard, L.; Wulfhekel, W.
2020. Physical review / B, 101 (3), Art.-Nr. 035429. doi:10.1103/PhysRevB.101.035429 

Epitaxial growth of Co on stepped Ru(0001): Stabilization of CoRu magnetic surface alloy
Lopes, R.; Hervé, M.; Gerhard, L.; Wulfhekel, W.; Martins, M. D.
2020. Surface science, 692, Article No.121512. doi:10.1016/j.susc.2019.121512 

Unconventional pairing in single FeSe layers
Jandke, J.; Yang, F.; Hlobil, P.; Engelhardt, T.; Rau, D.; Zakeri, K.; Gao, C.; Schmalian, J.; Wulfhekel, W.
2019. Physical review / B, 100 (2), Article: 020503. doi:10.1103/PhysRevB.100.020503 

Spin fluctuation induced Weyl semimetal state in the paramagnetic phase of EuCd2As2
Ma, J.-Z.; Nie, S. M.; Yi, C. J.; Jandke, J.; Shang, T.; Yao, M. Y.; Naamneh, M.; Yan, L. Q.; Sun, Y.; Chikina, A.; Strocov, V. N.; Medarde, M.; Song, M.; Xiong, Y.-M.; Xu, G.; Wulfhekel, W.; Mesot, J.; Reticcioli, M.; Franchini, C.; Mudry, C.; Müller, M.; Shi, Y. G.; Qian, T.; Ding, H.; Shi, M.
2019. Science advances, 5 (7), eaaw4718. doi:10.1126/sciadv.aaw4718  

Towards laterally resolved ferromagnetic resonance with spin-polarized scanning tunneling microscopy
Hervé, M.; Peter, M.; Balashov, T.; Wulfhekel, W.
2019. Nanomaterials, 9 (6), 827/1–10. doi:10.3390/nano9060827  

Six state molecular revolver mounted on a rigid platform
Homberg, J.; Lindner, M.; Gerhard, L.; Edelmann, K.; Frauhammer, T.; Nahas, Y.; Valášek, M.; Mayor, M.; Wulfhekel, W.
2019. Nanoscale, 11 (18), 9015–9022. doi:10.1039/c9nr00259f  

Publisher Correction: Stabilizing spin spirals and isolated skyrmions at low magnetic field exploiting vanishing magnetic anisotropy
Hervé, M.; Dupé, B.; Lopes, R.; Böttcher, M.; Martins, M. D.; Balashov, T.; Gerhard, L.; Sinova, J.; Wulfhekel, W.
2018. Nature Communications, 9 (1). doi:10.1038/s41467-018-04680-0  

Stabilizing spin spirals and isolated skyrmions at low magnetic field exploiting vanishing magnetic anisotropy
Hervé, M.; Dupé, B.; Lopes, R.; Böttcher, M.; Martins, M. D.; Balashov, T.; Gerhard, L.; Sinova, J.; Wulfhekel, W.
2018. Nature Communications, 9 (1), Art.Nr. 1015. doi:10.1038/s41467-018-03240-w  

Spin waves in disordered materials
Buczek, P.; Thomas, S.; Marmodoro, A.; Buczek, N.; Zubizarreta, X.; Hoffmann, M.; Balashov, T.; Wulfhekel, W.; Zakeri, K.; Ernst, A.
2018. Journal of physics / Condensed matter, 30 (42), 423001. doi:10.1088/1361-648X/aadefb 

Linking Electronic Transport through a Spin Crossover Thin Film to the Molecular Spin State Using X-ray Absorption Spectroscopy Operando Techniques
Schleicher, F.; Studniarek, M.; Kumar, K. S.; Urbain, E.; Katcko, K.; Chen, J.; Frauhammer, T.; Hervé, M.; Halisdemir, U.; Kandpal, L. M.; Lacour, D.; Riminucci, A.; Joly, L.; Scheurer, F.; Gobaut, B.; Choueikani, F.; Otero, E.; Ohresser, P.; Arabski, J.; Schmerber, G.; Wulfhekel, W.; Beaurepaire, E.; Weber, W.; Boukari, S.; Ruben, M.; Bowen, M.
2018. ACS applied materials & interfaces, 10 (37), 31580–31585. doi:10.1021/acsami.8b11495 

Light collection from a low-temperature scanning tunneling microscope using integrated mirror tips fabricated by direct laser writing
Edelmann, K.; Gerhard, L.; Winkler, M.; Wilmes, L.; Rai, V.; Schumann, M.; Kern, C.; Meyer, M.; Wegener, M.; Wulfhekel, W.
2018. Review of scientific instruments, 89 (12), Art. Nr.: 123107. doi:10.1063/1.5053882 

A compact ultrahigh vacuum scanning tunneling microscope with dilution refrigeration
Balashov, T.; Meyer, M.; Wulfhekel, W.
2018. Review of scientific instruments, 89 (11), Art. Nr.: 113707. doi:10.1063/1.5043636 

Large tunneling anisotropic magnetoresistance mediated by surface states
Hervé, M.; Balashov, T.; Ernst, A.; Wulfhekel, W.
2018. Physical review / B, 97 (22). doi:10.1103/PhysRevB.97.220406 

Electron-assisted magnetization tunneling in single spin systems
Balashov, T.; Karlewski, C.; Märkl, T.; Schön, G.; Wulfhekel, W.
2018. Physical review / B, 97 (2), Art. Nr.: 024412. doi:10.1103/PhysRevB.97.024412 

Abrupt Switching of Crystal Fields during Formation of Molecular Contacts
Chen, J.; Isshiki, H.; Baretzky, C.; Balashov, T.; Wulfhekel, W.
2018. ACS nano, 12 (4), 3280–3286. doi:10.1021/acsnano.7b07927 

Edge states in mesoscopic Bi islands on superconducting Nb(110)
Yang, F.; Jandke, J.; Storbeck, T.; Balashov, T.; Aishwarya, A.; Wulfhekel, W.
2017. Physical review / B, 96 (23), Art.Nr. 235413. doi:10.1103/PhysRevB.96.235413 

Molecular Graph Paper
Lindner, M.; Valášek, M.; Mayor, M.; Frauhammer, T.; Wulfhekel, W.; Gerhard, L.
2017. Angewandte Chemie / International edition, 56 (28), 8290–8294. doi:10.1002/anie.201703586 

Modulating the Ferromagnet/Molecule Spin Hybridization Using an Artificial Magnetoelectric
Studniarek, M.; Cherifi-Hertel, S.; Urbain, E.; Halisdemir, U.; Arras, R.; Taudul, B.; Schleicher, F.; Hervé, M.; Lambert, C.-H.; Hamadeh, A.; Joly, L.; Scheurer, F.; Schmerber, G.; Da Costa, V.; Warot-Fonrose, B.; Marcelot, C.; Mauguin, O.; Largeau, L.; Leduc, F.; Choueikani, F.; Otero, E.; Wulfhekel, W.; Arabski, J.; Ohresser, P.; Weber, W.; Beaurepaire, E.; Boukari, S.; Bowen, M.
2017. Advanced functional materials, 27 (27), Art.Nr. 1700259. doi:10.1002/adfm.201700259 

Tracing the Electronic Pairing Glue in Unconventional Superconductors via Inelastic Scanning Tunneling Spectroscopy
Hlobil, P.; Jandke, J.; Wulfhekel, W.; Schmalian, J.
2017. Physical review letters, 118, Art. Nr. 167001. doi:10.1103/PhysRevLett.118.167001 

Probing a Device’s Active Atoms
Studniarek, M.; Halisdemir, U.; Schleicher, F.; Taudul, B.; Urbain, E.; Boukari, S.; Hervé, M.; Lambert, C.-H.; Hamadeh, A.; Petit-Watelot, S.; Zill, O.; Lacour, D.; Joly, L.; Scheurer, F.; Schmerber, G.; Da Costa, V.; Dixit, A.; Guitard, P. A.; Acosta, M.; Leduc, F.; Choueikani, F.; Otero, E.; Wulfhekel, W.; Montaigne, F.; Monteblanco, E. N.; Arabski, J.; Ohresser, P.; Beaurepaire, E.; Weber, W.; Alouani, M.; Hehn, M.; Bowen, M.
2017. Advanced materials, 29 (19), Art. Nr. 1606578. doi:10.1002/adma.201606578 

An electrically actuated molecular toggle switch
Gerhard, L.; Edelmann, K.; Homberg, J.; Valášek, M.; Bahoosh, S. G.; Lukas, M.; Pauly, F.; Mayor, M.; Wulfhekel, W.
2017. Nature Communications, 8, 14672. doi:10.1038/ncomms14672  

Spin crossover in Fe(phen)2(NCS)2 complexes on metallic surfaces
Gruber, M.; Miyamachi, T.; Davesne, V.; Bowen, M.; Boukari, S.; Wulfhekel, W.; Alouani, M.; Beaurepaire, E.
2017. The journal of chemical physics, 146 (9), 092312. doi:10.1063/1.4973511 

Simple and advanced ferromagnet/molecule spinterfaces
Gruber, M.; Ibrahim, F.; Djedhloul, F.; Barraud, C.; Garreau, G.; Boukari, S.; Isshiki, H.; Joly, L.; Urbain, E.; Peter, M.; Studniarek, M.; Da Costa, V.; Jabbar, H.; Bulou, H.; Davesne, V.; Halisdemir, U.; Chen, J.; Xenioti, D.; Arabski, J.; Bouzehouane, K.; Deranlot, C.; Fusil, S.; Otero, E.; Choueikani, F.; Chen, K.; Ohresser, P.; Bertran, F.; Le Fèvre, P.; Taleb-Ibrahimi, A.; Wulfhekel, W.; Hajjar-Garreau, S.; Wetzel, P.; Seneor, P.; Mattana, R.; Petroff, F.; Scheurer, F.; Weber, W.; Alouani, M.; Beaurepaire, E.; Bowen, M.
2016. Spintronics IX, San Diego, California, United States, August 28 - September 1, 2016. Ed.: H.-J. Drouhin, 99313O/1–10, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2239067 

Two-band superconductivity of bulk and surface states in Ag thin films on Nb
Tomanic, T.; Schackert, M.; Wulfhekel, W.; Sürgers, C.; Löhneysen, H. v.
2016. Physical review / B, 94 (22), Art.Nr.: 220503. doi:10.1103/PhysRevB.94.220503 

Scanning tunneling spectroscopy on SrFe2(As1-x Px)2
Jandke, J.; Wild, P.; Schackert, M.; Suga, S.; Kobayashi, T.; Miyasaka, S.; Tajima, S.; Wulfhekel, W.
2016. Physical review / B, 93 (10), Art.Nr.: 104528. doi:10.1103/PhysRevB.93.104528 

Importance of the Anchor Group Position (Para versus Meta) in Tetraphenylmethane Tripods: Synthesis and Self-Assembly Features
Lindner, M.; Valasek, M.; Homberg, J.; Edelmann, K.; Gerhard, L.; Wulfhekel, W.; Fuhr, O.; Waechter, T.; Zharnikov, M.; Kolivoska, V.; Pospisil, L.; Meszaros, G.; Hromadova, M.; Mayor, M.
2016. Chemistry - a European journal, 22 (37), 13218–13235. doi:10.1002/chem.201602019 

High Spin Polarization at Ferromagnetic Metal–Organic Interfaces: A Generic Property
Djeghloul, F.; Gruber, M.; Urbain, E.; Xenioti, D.; Joly, L.; Boukari, S.; Arabski, J.; Bulou, H.; Scheurer, F.; Bertran, F.; Le Fèvre, P.; Taleb-Ibrahimi, A.; Wulfhekel, W.; Garreau, G.; Hajjar-Garreau, S.; Wetzel, P.; Alouani, M.; Beaurepaire, E.; Bowen, M.; Weber, W.
2016. The journal of physical chemistry letters, 7 (13), 2310–2315. doi:10.1021/acs.jpclett.6b01112 

Temperature control of the growth of iron oxide nanoislands on Fe(001)
Yamada, T. K.; Sakaguchi, Y.; Gerhard, L.; Wulfhekel, W.
2016. Japanese journal of applied physics / Supplement 1, 55 (8(S1), Art.Nr.: 08NB14. doi:10.7567/JJAP.55.08NB14 

Coupling to real and virtual phonons in tunneling spectroscopy of superconductors
Jandke, J.; Hlobil, P.; Schackert, M.; Wulfhekel, W.; Schmalian, J.
2016. Physical review / B, 93 (6), 060505. doi:10.1103/PhysRevB.93.060505 

Exchange Coupling of Spin-Crossover Molecules to Ferromagnetic Co Islands
Gueddida, S.; Gruber, M.; Miyamachi, T.; Beaurepaire, E.; Wulfhekel, W.; Alouani, M.
2016. Journal of Physical Chemistry Letters, 7 (5), 900–904. doi:10.1021/acs.jpclett.6b00172 

Single-molecule magnet behavior in 2,2 ’-bipyrimidine-bridged dilanthanide complexes
Yu, W.; Schramm, F.; Moreno Pineda, E.; Lan, Y.; Fuhr, O.; Chen, J.; Isshiki, H.; Wernsdorfer, W.; Wulfhekel, W.; Ruben, M.
2016. Beilstein journal of nanotechnology, 7, 126–137. doi:10.3762/bjnano.7.15  

Local Measurement of the Eliashberg Function of Pb Islands: Enhancement of Electron-Phonon Coupling by Quantum Well States
Schackert, M.; Maerkl, T.; Jandke, J.; Hoelzer, M.; Ostanin, S.; Gross, E. K. U.; Ernst, A.; Wulfhekel, W.
2015. Physical Review Letters, 114 (4), 047002. doi:10.1103/PhysRevLett.114.047002 

Magnetic Structure of Mn Films on Cu₃Au(100) Revealed by Spin-Polarized Scanning Tunneling Microscopy
Tange, A.; Gao, C.; Chiang, C.-T.; Lin, M.-T.; Wulfhekel, W.; Kirschner, J.
2015. Materials Transactions, 56 (9), 1484–1487. doi:10.2320/matertrans.MA201527 

High frequency transmission to a junction of a scanning tunneling microscope
Herve, M.; Peter, M.; Wulfhekel, W.
2015. Applied Physics Letters, 107 (9), 093101. doi:10.1063/1.4929766 

Highly spin-polarized carbon-based spinterfaces
Djeghloul, F.; Garreau, G.; Gruber, M.; Joly, L.; Boukari, S.; Arabski, J.; Bulou, H.; Scheurer, F.; Hallal, A.; Bertran, F.; Le Fevre, P.; Taleb-Ibrahimi, A.; Wulfhekel, W.; Beaurepaire, E.; Hajjar-Garreau, S.; Wetzel, P.; Bowen, M.; Weber, W.
2015. Carbon, 87, 269–274. doi:10.1016/j.carbon.2015.02.043 

Hysteresis and change of transition temperature in thin films of Fe{[Me₂Pyrz]₃BH}₂, a new sublimable spin-crossover molecule
Davesne, V.; Gruber, M.; Studniarek, M.; Doh, W. H.; Zafeiratos, S.; Joly, L.; Sirotti, F.; Silly, M. G.; Gaspar, A. B.; Real, J. A.; Schmerber, G.; Bowen, M.; Weber, W.; Boukari, S.; Da Costa, V.; Arabski, J.; Wulfhekel, W.; Beaurepaire, E.
2015. Journal of Chemical Physics, 142 (19), 194702. doi:10.1063/1.4921309 

Magnetic adatoms as memory bits: A quantum master equation analysis
Karlewski, C.; Marthaler, M.; Märkl, T.; Balashov, T.; Wulfhekel, W.; Schön, G.
2015. Physical review / B, 91 (24), 245430/1–13. doi:10.1103/PhysRevB.91.245430 

Sub-monolayer film growth of a volatile lanthanide complex on metallic surfaces
Isshiki, H.; Chen, J. J.; Edelmann, K.; Wulfhekel, W.
2015. Beilstein Journal of Nanotechnology, 6, 2412–2416. doi:10.3762/bjnano.6.248  

Spin-dependent hybridization between molecule and metal at room temperature through interlayer exchange coupling
Ibrahim, F.; Boukari, S.; Joly, L.; Da Costa, V.; Studniarek, M.; Peter, M.; Isshiki, H.; Jabbar, H.; Davesne, V.; Arabski, J.; Otero, E.; Choueikani, F.; Chen, K.; Ohresser, P.; Wulfhekel, W.; Scheurer, F.; Beaurepaire, E.; Alouani, M.; Weber, W.; Bowen, M.
2015. Nano Letters, 15 (12), 7921–7926. doi:10.1021/acs.nanolett.5b02961 

Exchange bias and room-temperature magnetic order in molecular layers
Gruber, M.; Ibrahim, F.; Boukari, S.; Isshiki, H.; Joly, L.; Peter, M.; Studniarek, M.; Da Costa, V.; Jabbar, H.; Davesne, V.; Halisdemir, U.; Chen, J.; Arabski, J.; Otero, E.; Choueikani, F.; Chen, K.; Ohresser, P.; Wulfhekel, W.; Scheurer, F.; Weber, W.; Alouani, M.; Beaurepaire, E.; Bowen, M.
2015. Nature Materials, 14 (10), 981–984. doi:10.1038/nmat4361 

Electric-field-induced switching from fcc to hcp stacking of a single layer of Fe/Ni(111)
Gerhard, L.; Peter, M.; Wulfhekel, W.
2015. Physical Review B, 91 (18), 184107/1–4. doi:10.1103/PhysRevB.91.184107 

Kondo effect in binuclear metal-organic complexes with weakly interacting spins
Zhang, L.; Bagrets, A.; Xenioti, D.; Korytar, R.; Schackert, M.; Miyamachi, T.; Schramm, F.; Fuhr, O.; Chandrasekar, R.; Alouani, M.; Ruben, M.; Wulfhekel, W.; Evers, F.
2015. Physical review / B, 91, 195424/1–11. doi:10.1103/PhysRevB.91.195424 

STM study of oligo(phenylene-ethynylene)s
Thiele, C.; Gerhard, L.; Eaton, T. R.; Torres, D. M.; Mayor, M.; Wulfhekel, W.; Löhneysen von, H.; Lukas, M.
2015. New journal of physics, 17 (5), 053043/1–11. doi:10.1088/1367-2630/17/5/053043  

Spins on surfaces
Wulfhekel, W.; Bluegel, S.
2014. Surface science, 630, 300/1–1. doi:10.1016/j.susc.2014.09.006 

Spin-polarized angle-resolved photoelectron spectroscopy of the so-predicted Kondo topological insulator SmB6
Suga, S.; Sakamoto, K.; Okuda, T.; Miyamoto, K.; Kuroda, K.; Sekiyama, A.; Yamaguchi, J.; Fujiwara, H.; Irizawa, A.; Ito, T.; Kimura, S.; Balashov, T.; Wulfhekel, W.; Yeo, S.; Iga, F.; Imada, S.
2014. Journal of the Physical Society of Japan, 83 (1), 014705. doi:10.7566/JPSJ.83.014705 

Spin state of spin-crossover complexes: From single molecules to ultrathin films
Gruber, M.; Davesne, V.; Bowen, M.; Boukari, S.; Beaurepaire, E.; Wulfhekel, W.; Miyamachi, T.
2014. Physical Review B - Condensed Matter and Materials Physics, 89 (19), 195415. doi:10.1103/PhysRevB.89.195415 

Dynamic magnetic excitations in 3d and 4f atoms and clusters
Balashov, T.; Miyamachi, T.; Schuh, T.; Märkl, T.; Bresch, C.; Wulfhekel, W.
2014. Surface science, 630, 331–336. doi:10.1016/j.susc.2014.07.025 

Magnon dispersion in thin magnetic films
Balashov, T.; Buczek, P.; Sandratskii, L.; Ernst, A.; Wulfhekel, W.
2014. Journal of Physics Condensed Matter, 26 (39), 394007. doi:10.1088/0953-8984/26/39/394007 

Influence of an electric field on the spin-reorientation transition in Ni/Cu(100)
Gerhard, L.; Bonell, F.; Wulfhekel, W.; Suzuki, Y.
2014. Applied Physics Letters, 105 (15), 152903/1–5. doi:10.1063/1.4898188 

Magnetic properties: The exchange changes everything
Wulfhekel, W.
2014. Nature Nanotechnology, 9 (1), 13–14. doi:10.1038/nnano.2013.295 

Direct observation of a highly spin-polarized organic spinterface at room temperature
Djeghloul, F.; Ibrahim, F.; Cantoni, M.; Bowen, M.; Joly, L.; Boukari, S.; Ohresser, P.; Bertran, F.; Le FÚvre, P.; Thakur, P.; Scheurer, F.; Miyamachi, T.; Mattana, R.; Seneor, P.; Jaafar, A.; Rinaldi, C.; Javaid, S.; Arabski, J.; Kappler, J.-P.; Wulfhekel, W.; Brookes, N. B.; Bertacco, R.; Taleb-Ibrahimi, A.; Alouani, M.; Beaurepaire, E.; Weber, W.
2013. Scientific reports, 3, Art. Nr.: 1272. doi:10.1038/srep01272  

Different evolution of the intrinsic gap in strongly correlated SmB 6 in contrast to YbB12
Yamaguchi, J.; Sekiyama, A.; Kimura, M. Y.; Sugiyama, H.; Tomida, Y.; Funabashi, G.; Komori, S.; Balashov, T.; Wulfhekel, W.; Ito, T.; Kimura, S.; Higashiya, A.; Tamasaku, K.; Yabashi, M.; Ishikawa, T.; Yeo, S.; Lee, S.-I.; Iga, F.; Takabatake, T.; Suga, S.
2013. New Journal of Physics, 15, 043042. doi:10.1088/1367-2630/15/4/043042 

Chemisorption of manganese phthalocyanine on Cu(001) surface promoted by van der Waals interactions
Javaid, S.; Lebegue, S.; Detlefs, B.; Ibrahim, F.; Djeghloul, F.; Bowen, M.; Boukari, S.; Miyamachi, T.; Arabski, J.; Spor, D.; Zegenhagen, J.; Wulfhekel, W.; Weber, W.; Beaurepaire, E.; Alouani, M.
2013. Physical Review B - Condensed Matter and Materials Physics, 87 (15), 155418. doi:10.1103/PhysRevB.87.155418 

First glimpse of the soft x-ray induced excited spin-state trapping effect dynamics on spin cross-over molecules
Davesne, V.; Gruber, M.; Miyamachi, T.; Da Costa, V.; Boukari, S.; Scheurer, F.; Joly, L.; Ohresser, P.; Otero, E.; Choueikani, F.; Gaspar, A. B.; Real, J. A.; Wulfhekel, W.; Bowen, M.; Beaurepaire, E.
2013. Journal of Chemical Physics, 139 (7), 074708. doi:10.1063/1.4818603 

Dynamics of electrically driven martensitic phase transitions in Fe nanoislands
Gerhard, L.; Wesselink, R. J. H.; Ostanin, S.; Ernst, A.; Wulfhekel, W.
2013. Physical Review Letters, 111 (16), 167601/1–5. doi:10.1103/PhysRevLett.111.167601 

Parity effect in the ground state localization of antiferromagnetic chains coupled to a ferromagnet
Holzberger, S.; Schuh, T.; Blügel, S.; Lounis, S.; Wulfhekel, W.
2013. Physical Review Letters, 110 (15), 157206. doi:10.1103/PhysRevLett.110.157206 

Stabilizing the magnetic moment of single holmium atoms by symmetry
Miyamachi, T.; Schuh, T.; Märkl, T.; Bresch, C.; Balashov, T.; Stöhr, A.; Karlewski, C.; André, S.; Marthaler, M.; Hoffmann, M.; Geilhufe, M.; Ostanin, S.; Hergert, W.; Mertig, I.; Schön, G.; Ernst, A.; Wulfhekel, W.
2013. Nature, 503 (7475), 242–246. doi:10.1038/nature12759 

C₅₈ on Au(111): A scanning tunneling microscopy study
Bajales, N.; Schmaus, S.; Miyamashi, T.; Wulfhekel, W.; Wilhelm, J.; Walz, M.; Stendel, M.; Bagrets, A.; Evers, F.; Ulas, S.; Kern, B.; Böttcher, A.; Kappes, M. M.
2013. Journal of Chemical Physics, 138 (10), 104703/1–12. doi:10.1063/1.4793761 

Functionalisation through periodically arranged nanostructures
Sahaf, H.; Moyen, E.; Mace, M.; Masson, L.; Hanbuecken, M.; Gerhard, L.; Wulfhekel, W.
2012. International Journal of Nanotechnology, 9 (3-7), 216–229. doi:10.1504/IJNT.2012.045328 

Spintronics with single molecules
Wulfhekel, W.; Miyamachi, T.; Schmaus, S.; Yamada, T. K.; Takacs, A. F.; Bagrets, A.; Evers, F.; Balashov, T.; Gruber, M.; Davesne, V.; Bowen, M.; Beaurepaire, E.
2012. Proceedings of the IEEE Conference on Nanotechnology, 6322103, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/NANO.2012.6322103 

Graphene-based electronic spin lenses
Gerhard, L.; Moyen, E.; Balashov, T.; Ozerov, I.; Portail, M.; Sahaf, H.; Masson, L.; Wulfhekel, W.; Hanbücken, M.
2012. Applied Physics Letters, 100 (15), 153106/1–3. doi:10.1063/1.3701594 

A Novel Self-Ordered Sub-10 nm Nanopore Template for Nanotechnology
Moyen, E.; Santinacci, L.; Masson, L.; Wulfhekel, W.; Hanbücken, M.
2012. Advanced Materials, 24 (37), 5094–5098. doi:10.1002/adma.201200648 

Robust spin crossover and memristance across a single molecule
Miyamachi, T.; Gruber, M.; Davesne, V.; Bowen, M.; Boukari, S.; Joly, L.; Scheurer, F.; Rogez, G.; Yamada, T. K.; Ohresser, P.; Beaurepaire, E.; Wulfhekel, W.
2012. Nature Communications, 3 (7), 938/1–6. doi:10.1038/ncomms1940 

Investigation of non-collinear spin states with Scanning Tunneling Microscopy
Wulfhekel, W.; Gao, C. L.
2012. Journal of Physics: Condensed Matter, 22 (8), 084021/1–11. doi:10.1088/0953-8984/22/8/084021 

Magnetic Excitations of Rare Earth Atoms and Clusters on Metallic Surfaces
Schuh, T.; Miyamachi, T.; Gerstl, S.; Geilhufe, M.; Hoffmann, M.; Ostanin, S.; Hergert, W.; Ernst, A.; Wulfhekel, W.
2012. Nano Letters, 12 (9), 4805–4809. doi:10.1021/nl302250n 

Single molecule magnetoresistance with combined antiferromagnetic and ferromagnetic electrodes
Bagrets, A.; Schmaus, S.; Jaafar, A.; Kramczynski, D.; Yamada, T. K.; Alouani, M.; Wulfhekel, W.; Evers, F.
2012. Nano Letters, 12, 5131–5136. doi:10.1021/nl301967t 

Electrical control of the magnetic state of Fe
Gerhard, L.; Yamada, T. K.; Balashov, T.; Takacs, A. F.; Wesselink, R. J. H.; Däne, M.; Fechner, M.; Ostanin, S.; Ernst, A.; Mertig, I.; Wulfhekel, W.
2011. IEEE Transactions on Magnetics, 47 (6 PART 1), 1619–1622. doi:10.1109/TMAG.2011.2107506 

Modication of magnetic stability of Co single atoms on Pt(111) by dimer formation
Miyamachiy, T.; Schuh, T.; Balashov, T.; Suga, S.; Wulfhekel, W.
2011. e-Journal of Surface Science and Nanotechnology, 9, 237–240. doi:10.1380/ejssnt.2011.237 

Electric field control of Fe nano magnets: Towards metallic nonvolatile data storage devices
Yamada, T. K.; Gerhard, L.; Balashov, T.; Takacs, A. F.; Wesselink, R. J. H.; Wulfhekel, W.
2011. Japanese Journal of Applied Physics, 50 (8 PART 4), 08LA03. doi:10.1143/JJAP.50.08LA03 

Magnetic anisotropy and magnetic excitations in supported atoms
Schuh, T.; Balashov, T.; Miyamachi, T.; Wu, S.-Y.; Kuo, C.-C.; Ernst, A.; Henk, J.; Wulfhekel, W.
2011. Physical Review B - Condensed Matter and Materials Physics, 84 (10), 104401. doi:10.1103/PhysRevB.84.104401 

A compact sub-Kelvin ultrahigh vacuum scanning tunneling microscope with high energy resolution and high stability
Zhang, L.; Miyamachi, T.; Tomanic, T.; Dehm, R.; Wulfhekel, W.
2011. Review of Scientific Instruments, 82 (10), 103702. doi:10.1063/1.3646468 

Giant magnetoresistance through a single molecule
Schmaus, S.; Bagrets, A.; Nahas, Y.; Yamada, T. K.; Bork, A.; Bowen, M.; Beaurepaire, E.; Evers, F.; Wulfhekel, W.
2011. Nature Nanotechnology, 6 (3), 185–189. doi:10.1038/nnano.2011.11 

V-V dimerization effects on bulk-sensitive hard x-ray photoemission spectra for Magnéli phase vanadium oxides
Obara, M.; Sekiyama, A.; Imada, S.; Yamaguchi, J.; Miyamachi, T.; Balashov, T.; Wulfhekel, W.; Yabashi, M.; Tamasaki, K.; Higashiya, A.; Ishikawa, T.; Fujiwara, K.; Takagi, H.; Suga, S.
2010. Physical Review B, 81 (11), 113107/1–4. doi:10.1103/PhysRevB.81.113107 

Impact on Interface Spin Polarization of Molecular Bonding to Metallic Surfaces
Javaid, S.; Bowen, M.; Boukari, S.; Joly, L.; Beaufrand, J.-B.; Chen, X.; Dappe, Y. J.; Scheurer, F.; Kappler, J.-P.; Arabski, J.; Wulfhekel, W.; Alouani, M.; Beaurepaire, E.
2010. Physical Review Letters, 105 (7), 077201/1–4. doi:10.1103/PhysRevLett.105.077201 

Magnetoelectric coupling at metal surfaces
Gerhard, L.; Yamada, T. K.; Balashov, T.; Wesselink, R. J. H.; Wulfhekel, W.
2010. Nature Nanotechnology, 5 (11), 792–797. doi:10.1038/nnano.2010.214 

Growth and magnetic order of Mn films on Fe(001)-p(1×1)O studied by spin-polarized scanning tunneling microscopy
Tange, A.; Gao, C.; Wulfhekel, W.; Kirschner, J.
2010. Physical Review B, 81 (22), 220404(R)/1–4. doi:10.1103/PhysRevB.81.220404 

Electronic structure and spin polarization of the Fe(001)-p(1×1)O surface
Tange, A.; Gao, C. L.; Yavorsky, B. Y.; Maznichenko, I. V.; Etz, C.; Ernst, A.; Hergert, W.; Mertig, I.; Wulfhekel, W.; Kirschner, J.
2010. Physical Review B, 81 (19), 195410/1–6. doi:10.1103/PhysRevB.81.195410 

Lifetimes of magnetic excitations in Fe and Co atoms and clusters on Pt(111)
Schuh, T.; Balashov, T.; Miyamachi, T.; Takasc, A. F.; Suga, S.; Wulfhekel, W.
2010. Journal of Applied Physics, 107 (9), 09E156/1–3. doi:10.1063/1.3365113 

Metal-rich Au-silicide nanoparticles for use in nanotechnology
Moyen, E.; Mace, M.; Agnus, G. and; Fleurence, A.; Maroutian, T.; Houze, F.; Stupakiewicz, A.; Masson, L.; Bartenlian, B.; Wulfhekel, W.; Beauvillain, P.; Hanbuecken, M.
2009. Applied Physics Letters, 94 (23), 233101/1–3. doi:10.1063/1.3148782 

Magnetic Anisotropy and Magnetization Dynamics of Individual Atoms and Clusters of Fe and Co on Pt(111)
Balashov, T.; Schuh, T.; Takacs, A. F.; Ernst, A.; Ostanin, S.; Henk, J.; Mertig, I.; Bruno, P.; Miyamachi, T.; Suga, S.; Wulfhekel, W.
2009. Physical Review Letters, 102 (25), 257203/1–4. doi:10.1103/PhysRevLett.102.257203 

Electron transport through single phthalocyanine molecules studied using scanning tunneling microscopy
Takacs, A. F.; Witt, F.; Schmaus, S.; Balashov, T.; Bowen, M.; Beaurepaire, E.; Wulfhekel, W.
2008. Physical Review B, 78 (23), 233404. doi:10.1103/PhysRevB.78.233404 

Revealing the 120 degrees Antiferromagnetic Neel Structure in Real Space: One Monolayer Mn on Ag(111)
Gao, C. L.; Wulfhekel, W.; Kirschner, J.
2008. Physical Review Letters, 101 (26), 267205. doi:10.1103/PhysRevLett.101.267205 

Comment on "Three-Dimensional, Spin-Resolved Structure of Magnetic Vortex and Antivortex States in Patterned Co Films Using Scanning Ion Microscopy with Polarization Analysis"
Bode, M.; Pietzsch, O.; Kubetzka, A.; Wulfhekel, W.; McGrouther, D.; McVitie, S.; Chapman, J. N.
2008. Physical Review Letters, 100 (2), 029703. doi:10.1103/PhysRevLett.100.029703 

Inelastic electron-magnon interaction and spin transfer torque
Balashov, T.; Takacs, A. F.; Daene, M.; Ernst, A.; Bruno, P.; Wulfhekel, W.
2008. Physical Review B, 78 (17), 174404. doi:10.1103/PhysRevB.78.174404 

Submonolayer regime of Co epitaxy on Pd(111): Morphology and electronic structure
Wasniowska, M.; Wulfhekel, W.; Przybylski, M.; Kirschner, J.
2008. Physical Review B, 78 (3), 35405/1–8 

Spin wave dispersion on the nanometer scale
Wulfhekel, W.; Gao, C. L.; Ernst, A.; Fischer, G.; Hergert, W.; Bruno, P.; Kirschner, J.
2008. Physical Review Letters, 101 (16), 167201/1–4. doi:10.1103/PhysRevLett.101.167201 

Electron transport through single phthalocyanine molecules with STM
Wulfhekel, W.; Takacs, A. F.; Witt, F.; Schmaus, S.; Balashov, T.; Bowen, M.; Beaurepaire, E.
2008. Physical Review B, 78 (23), 233404/1–4 

Noncollinear surface spin density by surface reconstruction in the alloy NiMn
Wulfhekel, W.; Gao, C. L.; Ernst, A.; Winkelmann, A.; Henk, J.; Bruno, P.; Kirschner, J.
2008. Physical Review Letters, 100 (23), 237203/1–4. doi:10.1103/PhysRevLett.100.237203 

Inelastic electron-magnon interaction and spin transfer torque
Wulfhekel, W.; Takacs, A. F.; Balashov, T.; Däne, M.; Ernst, A.; Bruno, P.
2008. Physical Review B, 78 (17), 174404/1–5 

Revealing the 120° antiferromagnetic Néel structure in real space: One monolayer Mn on Ag(111)
Gao, C. L.; Wulfhekel, W.; Kirschner, J.
2008. Physical Review Letters, 101 (26), 267205/1–4 

Spin-polarized scanning tunneling microscopy of magnetic structures and antiferromagnetic thin films
Wulfhekel, W.; Kirschner, J.
2007. Annual Review of Materials Research, 37, 69–91. doi:10.1146/annurev.matsci.37.052506.084342 

Mapping the Surface Spin Structure of Large Unit Cells: Reconstructed Mn Films on Fe(001)
Wulfhekel, W.; Gao, C. L.; Schlickum, U.; Kirschner, J.
2007. Physical Review Letters, 98 (10), 107203/1–4. doi:10.1103/PhysRevLett.98.107203 

Etching nano-holes in silicon carbide using catalytic platinum nano-particles
Moyen, E.; Wulfhekel, W.; Lee, W.; Leycuras, A.; Nielsch, K.; Goesele, U.; Hanbuecken, M.
2006. Applied Physics A: Materials Science and Processing, 84 (4), 369–371. doi:10.1007/s00339-006-3639-4 

Vertical nanopatterning of 6H-SiC(0001) surfaces using gold-metal nanotube membrane lithography
Lee, W.; Moyen, E.; Wulfhekel, W.; Leycuras, A.; Nielsch, K.; Goesele, U.; Hanbuecken, M.
2006. Applied Physics A: Materials Science and Processing, 83 (3), 361–363. doi:10.1007/s00339-006-3566-4 

Single-crystalline Fe/Cr/Fe/MgO/Fe magnetotunnel junctions grown on GaAs(001)
Grabowski, J.; Przybylski, M.; Nyvlt, M.; Zukrowski, J.; Wulfhekel, W.; Kirschner, J.
2006. Journal of Applied Physics, 99 (8), Art.Nr. 08C908. doi:10.1063/1.2171939 

Magnon excitation with spin-polarized scanning tunneling microscopy
Balashov, T.; Takacs, A. F.; Wulfhekel, W.; Kirschner, J.
2006. Physical Review Letters, 97 (18), 187201. doi:10.1103/PhysRevLett.97.187201 

Effect of antiferromagnetic layers on the spin-dependent transport in magnetic tunnel junctions
Wulfhekel, W.; Schlickum, U.; Gao, C. L.; Henk, J.; Bruno, P.; Kirschner, J.
2006. Physical Review B, 74 (5), Art.Nr. 54409/1–6. doi:10.1103/PhysRevB.74.054409 

Magnon excitation with spin-polarized Scanning Tunneling Microscopy
Balashov, T.; Takacs, A. F.; Wulfhekel, W.; Kirschner, J.
2006. Physical Review Letters, 97 (18), 187201/1–4 

Influence of step edges and strain on the domain wall width
Bodea, S.; Wulfhekel, W.; Kirschner, J.
2005. Physical Review B - Condensed Matter and Materials Physics, 72 (10), Art.Nr. 100403. doi:10.1103/PhysRevB.72.100403 

Topological frustrations in Mn films on Fe(001)
Wulfhekel, W.; Schlickum, U.; Kirschner, J.
2005. Microscopy Research and Technique, 66 (2-3), 105–116. doi:10.1002/jemt.20150 

Large Spin Effects in Coulomb Blockade of Fe/MgO/Fe tunnel junctions
Wulfhekel, W.; Ernst, A.; Henk, J.; Zavaliche, F.; Kuo, C. C.; Lin, M. T.; Bruno, P.; Kirschner, J.
2005. Physical Review B - Condensed Matter and Materials Physics, 72 (21), 212407/1–4. doi:10.1103/PhysRevB.72.212407 

The influence of step edges and strain on the domain wall width
Bodea, S.; Wulfhekel, W.; Kirschner, J.
2005. Physical Review B, 72 (10), 100403/1–4 

Interlayer magnetic coupling in single-crystalline Fe/Cr/Fe and Fe/MgO/Fe structures grown on GaAs(001)
Przybylski, M.; Grabowski, J.; Wulfhekel, W.; Kirschner, J.
2004. Surface Science, 566-568 (1-3), 256–261. doi:10.1016/j.susc.2004.05.054 

90°coupling in (Fe/Cr/Fe)AFM/Cr/Fe system epitaxially grown on GaAs(0 0 1)
Grabowski, J.; Przybylski, M.; Wulfhekel, W.; Rams, M.; Kirschner, J.
2004. Vacuum, 74 (2), 279–285. doi:10.1016/j.vacuum.2003.12.149 

Spin-polarized scanning tunneling spectroscopy study of Fe nanomagnets on W(001)
Yamasaki, A.; Wulfhekel, W.; Hertel, R.; Suga, S.; Kirschner, J.
2004. Journal of Applied Physics, 95 (11), 7025–7027. doi:10.1063/1.1687276 

Regular step formation on concave-shaped surfaces on 6H-SiC(0001)
Wulfhekel, W.; Sander, D.; Nitsche, S.; Dulot, F.; Leycuras, A.; Hanbucken, M.
2004. Surface Science, 550 (1-3), 8–14. doi:10.1016/j.susc.2003.12.037 

Structural reorganisation of vicinal surfaces on 6H-SiC(0001) induced by hot hydrogen etching
Wulfhekel, W.; Sander, D.; Nitsche, S.; Dulot, F.; Leycuras, A.; Hanbucken, M.
2004. Applied Surface Science, 234 (1-4), 251–255. doi:10.1016/j.apsusc.2004.05.262 

Magneto-optical properties of Fe/Cr/Fe/MgO/Fe structures epitaxially grown on GaAs(001)
Przybylski, M.; Grabowski, J.; Wulfhekel, W.; Rams, M.; Tomala, K.; Kirschner, J.
2004. Journal of Applied Physics, 95 (2), 597–602. doi:10.1063/1.1632016 

An analytical model for ultrathin films with spatially varying magnetic anisotropies
Porrati, F.; Wulfhekel, W.; Kirschner, J.
2004. Journal of Magnetism and Magnetic Materials, 270 (1-2), 22–31. doi:10.1016/S0304-8853(03)00658-9 

Comparison of structural re-organisations observed on pre-patterned vicinal Si(111) and Si(100) surfaces during heat treatment
Kraus, A.; Neddermeyer, H.; Wulfhekel, W.; Sander, D.; Maroutian, T.; Dulot, F.; Martinez-Gil, A.; Hanbucken, M.
2004. Applied Surface Science, 234 (1-4), 307–312. doi:10.1016/j.apsusc.2004.05.057 

Highly regular nanometer-sized hexagonal pipes in 6H-SiC(0001)
Wulfhekel, W.; Sander, D.; Nitsche, S.; Leycuras, A.; Hanbücken, M.
2004. Applied Physics A: Materials Science and Processing, 79 (3), 411–413. doi:10.1007/s00339-004-2705-z 

Domain-Wall Induced Phase Shifts in Spin Waves
Hertel, R.; Wulfhekel, W.; Kirschner, J.
2004. Physical Review Letters, 93 (25), Art.Nr. 257202/1–4. doi:10.1103/PhysRevLett.93.257202 

Step-induced frustration of antiferromagnetic order in Mn on Fe(001)
Wulfhekel, W.; Schlickum, U.; Janke-Gilman, N.; Kirschner, J.
2004. Physical Review Letters, 92 (10), Art.Nr. 107203/1–4. doi:10.1103/PhysRevLett.92.107203 

Au-induced perpendicular magnetization in Fe films grown on Si(001)
Zavaliche, F.; Wulfhekel, W.; Przybylski, M.; Bodea, S.; Grabowski, J.; Kirschner, J.
2003. Journal of Physics D: Applied Physics, 36 (7), 779–784. doi:10.1088/0022-3727/36/7/302 

Structural and magnetic characterization of single-crystalline Fe/MgO/Fe magneto-tunnel junctions grown on GaAs(001) and InP(001)
Przybylski, M.; Grabowski, J.; Zavaliche, F.; Wulfhekel, W.; Scholz, R.; Kirschner, J.
2003. Journal of Physics D: Applied Physics, 35 (15), 1821–1827. doi:10.1088/0022-3727/35/15/301 

Spin-polarized scanning tunneling microscope for imaging the in-plane magnetization
Schlickum, U.; Wulfhekel, W.; Kirschner, J.
2003. Applied Physics Letters, 83 (10), 2016–2018. doi:10.1063/1.1606867 

Anisotropic susceptibility of ferromagnetic ultrathin Co films on vicinal Cu
Jensen, P. J.; Knappmann, S.; Wulfhekel, W.; Oepen, H. P.
2003. Physical Review B - Condensed Matter and Materials Physics, 67 (18), Art.Nr. 184417. doi:10.1103/PhysRevB.67.184417 

Growth and magnetism of Fe nanostructures on W(001)
Wulfhekel, W.; Zavaliche, F.; Bodea, S.; Hertel, R.; Steierl, G.; Liu, G.; Oepen, H. P.; Kirschner, J.
2003. Physical Review B, 68 (14), 144416/1–9. doi:10.1103/PhysRevB.68.144416 

Absence of Zero-Bias Anomaly in Spin-Polarized Vacuum Tunneling in Co(0001)
Wulfhekel, W.; Ding, H. F.; Henk, J.; Bruno, P.; Kirschner, J.
2003. Physical Review Letters, 90 (11), Art.Nr. 116603/1–4. doi:10.1103/PhysRevLett.90.116603 

Direct Observation of the Single-Domain Limit of Fe Nanomagnets by Spin-Polarized Scanning Tunneling Spectroscopy
Wulfhekel, W.; Yamasaki, A.; Hertel, R.; Suga, S.; Kirschner, J.
2003. Physical Review Letters, 91 (12), 127201/1–4 

A spin-polarized scanning tunneling microscope for imaging the in-plane magnetization
Schlickum, U.; Wulfhekel, W.; Kirschner, J.
2003. Applied Physics Letters, 83 (10), 2016–2018 

Spin-polarized vacuum tunneling at small gap widths
Ding, H. F.; Wulfhekel, W.; Kirschner, J.
2003. Europhysics Letters, 63 (3), 419–425. doi:10.1209/epl/i2003-00549-4 

Growth of Fe-based spin aligners on semiconducting substrates
Zavaliche, F.; Przybylski, M.; Wulfhekel, W.; Grabowski, J.; Scholz, R.; Kirschner, J.
2002. Surface Science, 507-510, 560–566. doi:10.1016/S0039-6028(02)01309-2 

Amorphous, low magnetostriction tips for spin-polarized scanning tunneling microscopy
Wulfhekel, W.; Hertel, R.; Ding, H. F.; Steierl, G.; Kirschner, J.
2002. Journal of Magnetism and Magnetic Materials, 249 (1-2), 368–374. doi:10.1016/S0304-8853(02)00560-7 

High-resolution study of magnetization and susceptibility by spin-polarized scanning tunneling microscopy
Wulfhekel, W.; Ding, H. F.; Kirschner, J.
2002. Journal of Applied Physics, 87 (9), 6475–6477. doi:10.1063/1.372742 

Tunneling magnetoresistance through a vacuum gap
Wulfhekel, W.; Ding, H. F.; Kirschner, J.
2002. Journal of Magnetism and Magnetic Materials, 242-245 (Part 1), 47–52. doi:10.1016/S0304-8853 

Structure and morphology of concave-shaped surfaces on 6H–SiC(0 0 0 1) after H2 etching
Dulot, F.; Mansour, L.; Leycuras, A.; Wulfhekel, W.; Sander, D.; D’Avitaya, F. A.; Hanbücken, M.
2002. Applied Surface Science, 187 (3-4), 319–325. doi:10.1016/S0169-4332(01)01048-0 

Growth and magnetic properties of Fe films on InP(001)
Wulfhekel, W.; Zavaliche, F.; Kirschner, J.
2002. Physical Review B, 65 (24), 245317/1–9. doi:10.1103/PhysRevB.65.245317 

Preferential carbon etching by hydrogen inside hexagonal voids of 6H-SiC(0001)
Wulfhekel, W.; Sander, D.; Hanbücken, M.; Leycuras, A.; Nitsche, S.; Palmari, J. P.; Dulot, D.; d’Avitaya, F. A.
2002. Applied Physics Letters, 81 (19), 3570–3572. doi:10.1063/1.1519962 

Ultra sharp domain walls in the closure domain pattern of Co(0001)
Ding, H. F.; Wulfhekel, W.; Kirschner, J.
2002. Europhysics Letters, 57 (1), 100–106. doi:10.1209/epl/i2002-00547-6 

Single-crystal magnetotunnel junctions
Wulfhekel, W.; Klaua, M.; Ullmann, D.; Zavaliche, F.; Kirschner, J.; Urban, R.; Monchesky, T.; Heinrich, B.
2001. Applied Physics Letters, 78 (4), 509–511. doi:10.1063/1.1342778 

Relation between structure, stress, and magnetism in Co/W(001)
Wulfhekel, W.; Gutjahr-Loser, T.; Zavaliche, F.; Sander, D.; Kirschner, J.
2001. Physical Review B - Condensed Matter and Materials Physics, 64 (14), Art.Nr. 144422. doi:10.1103/PhysRevB.64.144422 

High-resolution magnetic imaging by local tunneling magnetoresistance
Wulfhekel, W.; Ding, H. F.; Lutzke, W.; Steierl, G.; Vazquez, M.; Marin, P.; Hernando, A.; Kirschner, J.
2001. Applied Physics A: Materials Science and Processing, 72 (4), 463–470. doi:10.1007/s003390100579 

Growth, structure, electronic, and magnetic properties of MgO/Fe(001) bilayers and Fe/MgO/Fe(001) trilayers
Klaua, M.; Ullmann, D.; Barthel, J.; Wulfhekel, W.; Kirschner, J.; Urban, R.; Monchesky, T. L.; Enders, A.; Cochran, J. F.; Heinrich, B.
2001. Physical Review B - Condensed Matter and Materials Physics, 64 (13), Art.Nr. 134411. doi:10.1103/PhysRevB.64.134411 

A combined magnetic force and spin-polarized scanning tunneling microscopy study of the closure domain pattern of Co(0001)
Ding, H. F.; Wulfhekel, W.; Chen, C.; Barthel, J.; Kirschner, J.
2001. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 84 (1-2), 96–101. doi:10.1016/S0921-5107(01)00576-1 

Origin of roughening in epitaxial growth of silicon on Si(001) and Ge(001) surfaces
Wulfhekel, W.; Zandvliet, H. J. W.; Zoethout, E.; Poelsema, B.
2001. Surface Science, 482-485 (1), 391–395. doi:10.1016/S0039-6028(01)00807-X 

Single crystal magneto tunnel junctions
Wulfhekel, W.; Klaua, M.; Ullmann, D.; Zavaliche, F.; Kirschner, J.; Urban, R.; Monchesky, T.; Heinrich, B.
2001. Applied Physics Letters, 78 (4), 509–511 

The relation between Structure, Stress and Magnetism in Co/W(001)
Wulfhekel, W.; Gutjahr-Löser, T.; Zavaliche, F.; Sander, D.; Kirschner, J.
2001. Physical Review B, 64 (14), 144422/1–8 

Suppression of silicide formation in Fe films grown on Si(001)
Wulfhekel, W.; Zavaliche, F.; Xu, H.; Kirschner, J.
2000. Journal of Applied Physics, 88 (9), 5289–5292. doi:10.1063/1.1314311 

Nano-patterning of magnetic anisotropy by controlled strain relief
Wulfhekel, W.; Zavaliche, F.; Porrati, F.; Oepen, H. P.; Kirschner, J.
2000. Europhysics Letters, 49 (5), 651–657. doi:10.1209/epl/i2000-00200-6 

Spin-polarized scanning tunneling microscopy on ferromagnets
Wulfhekel, W.; Kirschner, J.
1999. Applied Physics Letters, 75 (13), 1944–1946. doi:10.1063/1.124879 

Diffusion mechanisms and the nature of Si ad-dimers on Ge(001)
Zoethout, E.; Zandvliet, H. J. W.; Wulfhekel, W.; Rosenfeld, G.; Poelsema, B.
1998. Physical Review B - Condensed Matter and Materials Physics, 58 (24), 16167–16171. doi:10.1103/PhysRevB.58.16167 

STM tip-induced creation and annihilation of small Ge clusters and missing dimer vacancies on Ge(001)
Zandvliet, H. J. W.; Wulfhekel, W.; Hendriksen, B. L. M.; Hattink, B. J.; Poelsema, B.
1998. Physical Review B - Condensed Matter and Materials Physics, 57 (3), 1356–1358. doi:10.1103/PhysRevB.57.1356 

Spontaneous formation of an ordered c(4x2)-(2x1) domain pattern on Ge(001)
Zandvliet, H. J. W.; Swartzentruber, B. S.; Wulfhekel, W.; Hattink, B. J.; Poelsema, B.
1998. Physical Review B - Condensed Matter and Materials Physics, 57 (12), R6803-R6806. doi:10.1103/PhysRevB.57.R6803 

Smooth growth fronts in Si/Ge heteroepitaxy by kinetic growth manipulation
Wulfhekel, W.; Zandvliet, H. J. W.; Hattink, B. J.; Rosenfeld, G.; Comsa, G.; Poelsema, B.
1998. Physical Review B - Condensed Matter and Materials Physics, 58 (23), 15359–15362. doi:10.1103/PhysRevB.58.15359 

Growth and morphology of Ni films on Cu(111)
Wulfhekel, W.; Beckmann, I.; Rosenfeld, G.; Poelsema, B.; Comsa, G.
1998. Surface Science, 395 (2-3), 168–181. doi:10.1016/S0039-6028(97)00622-5 

Stability of two-dimensional clusters on crystal surfaces: From Ostwald ripening to single-cluster decay
Rosenfeld, G.; Morgenstern, K.; Beckmann, I.; Wulfhekel, W.; Laegsgaard, E.; Besenbacher, F.; Comsa, G.
1998. Surface Science, 402 (1-3), 401–408. doi:10.1016/S0039-6028(98)00024-7 

Step dynamics and equilibrium structure of monoatomic steps on Si(100)-2x1 - Comment
Zandvliet, H. J. W.; Wulfhekel, W.; Hendriksen, B.; Poelsema, B.
1997. Physical Review B - Condensed Matter and Materials Physics, 56 (7), 4283–4283. doi:10.1103/PhysRevB.56.4283 

Dynamics and energetics of Si ad-dimers and ad-dimer clusters on Ge(100)
Wulfhekel, W.; Hattink, B. J.; Zandvliet, H. J. W.; Rosenfeld, G.; Poelsema, B.
1997. Physical Review Letters, 79 (13), 2494–2497. doi:10.1103/PhysRevLett.79.2494 

Conventional and manipulated growth of Cu/Cu(111)
Wulfhekel, W.; Lipkin, N. N.; Kliewer, J.; Rosenfeld, G.; Jorritsma, L. C.; Poelsema, B.; Comsa, G.
1996. Surface Science, 348 (3), 227–242. doi:10.1016/0039-6028(95)00988-4 

Magnetic anisotropy of Co on Cu(1 1 17)
Wulfhekel, W.; Knappmann, S.; Oepen, H. P.
1996. Journal of Applied Physics, 79 (2), 988–992. doi:10.1063/1.360884 

Magnetic anisotropy in Co/Cu(1 1 17): Temperature dependence
Wulfhekel, W.; Knappmann, S.; Oepen, H. P.
1996. Journal of Magnetism and Magnetic Materials, 163 (3), 267–276. doi:10.1016/S0304-8853(96)00339-3 

Manipulation of growth modes in heteroepitaxy: Ni/Cu(111)
Wulfhekel, W.; Beckmann, I.; Lipkin, N. N.; Rosenfeld, G.; Poelsema, B.; Comsa, G.
1996. Applied Physics Letters, 69 (23), 3492–3494. doi:10.1063/1.117222 

New Concepts For Controlled Homoepitaxy
Rosenfeld, G.; Lipkin, N. N.; Wulfhekel, W.; Kliewer, J.; Morgenstern, K.; Poelsema, B.; Comsa, G.
1995. Applied Physics A: Materials Science and Processing, 61 (5), 455–466. doi:10.1007/BF01540247 

Ferromagnetic and Para-magnetic Properties of Ultrathin Epitaxial Co/cu Films
Oepen, H. P.; Knappmann, S.; Wulfhekel, W.
1995. Journal of Magnetism and Magnetic Materials, 148 (1-2), 90–92. doi:10.1016/0304-8853(95)00162-X 

Temperature-induced Magnetic Anisotropies In Co/cu(1117)
Wulfhekel, W.; Knappmann, S.; Gehring, B.; Oepen, H. P.
1994. Physical Review B - Condensed Matter and Materials Physics, 50 (21), 16074–16077. doi:10.1103/PhysRevB.50.16074