Publications

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

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

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

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

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

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

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

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

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

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

Switching Behavior of Tripodal Molecules on Au(111) Studied With STM
Gerhard, L.; Valášek, M.
2017. Reference Module in Chemistry, Molecular Sciences and Chemical Engineering. Ed.: J. Reedijk, Elsevier. doi:10.1016/B978-0-12-409547-2.14156-3

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

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

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

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

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

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

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

Synthesis of molecular tripods based on a rigid 9,9’-spirobifluorene scaffold
Valasek, M.; Edelmann, K.; Gerhard, L.; Fuhr, O.; Lukas, M.; Mayor, M.
2014. The journal of organic chemistry, 79, 7342–7357. doi:10.1021/jo501029t

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

Catalytic subsurface etching of nanoscale channels in graphite
Lukas, M.; Meded, V.; Vijayaraghavan, A.; Song, L.; Ajayan, P. M.; Fink, K.; Wenzel, W.; Krupke, R.
2013. Nature Communications, 4, 1379. doi:10.1038/ncomms2399

A Tripodal Molecule on a Gold Surface: Orientation-Dependent Coupling and Electronic Properties of the Molecular Legs
Lukas, M.; Dössel, K.; Schramm, A.; Fuhr, O.; Stroh, C.; Mayor, M.; Fink, K.; Löhneysen, H. von
2013. ACS nano, 7 (7), 6170–6180. doi:10.1021/nn4020505

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

Electronic disorder of P- and B-doped Si at the metal-insulator transition investigated by scanning tunnelling microscopy and electronic transport
Sürgers, C.; Wenderoth, M.; Löser, K.; Garleff, J. K.; Ulbrich, R. G.; Lukas, M.; Löhneysen, H. von
2013. New journal of physics, 15 (5), 055009/1–19. doi:10.1088/1367-2630/15/5/055009

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

Isolated facial and meridional tris(bipyridine)Ru(II) for STM studies on Au(111)
Schramm, A.; Stroh, C.; Dössel, K.; Lukas, M.; Fuhr, O.; Löhneysen, H. von; Mayor, M.
2013. Chemical Communications, 49, 1076–1078. doi:10.1039/C2CC37904J

Tripodal M complexes on Au(111) surfaces: Towards molecular ’lunar modules’
Schramm, A.; Stroh, C.; Dössel, K.; Lukas, M.; Fischer, M.; Schramm, F.; Fuhr, O.; Löhneysen, H. von; Mayor, M.
2013. European Journal of Inorganic Chemistry, (1), 70–79. doi:10.1002/ejic.201200928

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

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

Electron mobility variations in surface-charged indium tin oxide thin films
Dasgupta, S.; Lukas, M.; Dössel, K.; Kruk, R.; Hahn, H.
2009. Physical Review B, 80, 085425/1–8. doi:10.1103/PhysRevB.80.085425

Adenine monolayers on the Au(111) surface: structure identification by scanning tunneling microscopy experiment and ab initio calculations
Lukas, M.; Kelly, R. E. A.; Kantorovich, L. N.; Otero, R.; Xu, W.; Laegsgaard, E.; Stensgaard, I.; Besenbacher, F.
2009. Journal of Chemical Physics, 130, 024705/1–9. doi:10.1063/1.3046690

Understanding the disorder of the DNA base cytosine on the Au(111) surface
Kelly, R. E. A.; Lukas, M.; Kantorovich, L. N.; Otero, R.; Xu, W.; Mura, M.; Laegsgaard, E.; Stensgaard, I.; Besenbacher, F.
2008. Journal of Chemical Physics, 129, 184707/1–13. doi:10.1063/1.3001585