Chair of Surface Physics
Prof. Dr. C. Laubschat
Physikgebäude Zellescher Weg 16
D-Flügel, REC D102
Tel.: +49 351 463-33249
Fax: +49 351 463-33457
eMail: claub
The Chair of Surface Physics, owner Prof. Dr. Clemens Laubschat, is concerned with the investigation of the electronic structure of solids with special consideration of surface and interfacial phenomena. Methodically, mainly angle-resolved photoelectron spectroscopy (ARPES) is used, partly using synchrotron radiation (BESSY II/ Berlin, SLS/Villigen, ALS/Berkeley, ...) as well as X-ray absorption spectroscopy, Auger spectroscopy and inverse photoemission. The experiments are mainly performed on monocrystalline samples or epitaxial thin films, which are prepared in-situ and structurally characterized by low-energy electron diffraction (LEED) and photoelectron diffraction (PED).
A major focus of our work is on intermetallic compounds of rare earths and uranium. In addition to the electronic band structure, these investigations focus on questions of the interaction of the localized f-electrons with the valence band, which give rise to correlation phenomena such as Kondo lattices, heavy fermions or mixed valences, as well as transitions of the f-electrons from a localized to an itinerant behavior.
Another research focus is on low-dimensional systems, which are generated by intercalation of foreign atoms in layered crystals such as graphite or graphene and lead to unusual, strongly anisotropic material properties.
The research group is participating in CRC 1143 and RTG 1621 and strongly involved in the operation of the Russian-German Laboratory (RGL) at BESSY II, Berlin, consisting on two beamlines in the soft X-ray regime with two ARPES-spectrometers, one of them equipped with a spin-detector. Respective work is performed in close cooperation with Prof. Dr. E. Rühl, FU Berlin, Prof. Dr. O. Rader, HZB Berlin, Prof. Dr. Denis Vyalikh, DIPC, San Sebastián, Spain, Dr. D. Usachov, St. Petersburg State University, Russia, and Dr. L. Yashina, Lomonossov University Moscow, Russia.
Monocrystalline samples are mainly provided by the materials lab, IFW Dresden, as well as by Dr. C. Geibel, MPI CPfS Dresden, and Prof. Dr. C. Krellner, Frankfurt University. Concerning theory, close cooperation exists with the theory group at the IFW Dresden as well as with Prof. Dr. E. Chulkov, San Sebastián, Spanien, Dr. K. Matho, Grenoble, France, and Dr. Yu. Kucherenko, Kiev, Ukraine.
Staff members:
Dr. habil Steffen Danzenbächer
Dr. Laura Fernandez Recuero
Dipl. Phys. Monika Güttler
Dr. Anna Makarova
Dipl. Phys. Susanne Schultz
Dipl. Phys. Dmitiy Smirnov
B SC Max Mende
CURRICULUM VITAE: CV.pdf
Publications: (Numbering refers to the complete list of publications)
2015:
209. A.A. Makarova, E.V. Grachova, V.S. Neudachina, L.V. Yashina, A. Blüher, S.L. Molodtsov, M. Mertig, H. Ehrlich, V.K. Adamchuk, C.Laubschat, and D.V. Vyalikh
”Insight into Bio-metal Interface Formation in vacuo: Interplay of S-layer Protein with Copper and Iron”
Scientific Reports 5, 8710 (2015)
210. E.Yu. Kataev, D.M. Itkis, A.V. Fedorov, B.V. Senkovsky, D.Yu. Usachov,
N.I. Verbitskiy, A. Grüneis, A. Barinov, D.Yu. Tsukanova, A.A. Volykhov, K.V. Mironovich, V.A. Krivchenko, M.G. Rybin, E.D. Obraztsova, C. Laubschat, D.V. Vyalikh, and L.V. Yashina
“ Oxygen Reduction by Lithiated Graphene and Graphene-Based Materials”
ACS NANO 9, 320 (2015)
211. K. Kummer, S. Patil, A. Chikina, M. Güttler, M. Höppner, A. Generalov,
S. Danzenbächer, S. Seiro, A. Hannaske, C. Krellner, Yu. Kucherenko, M. Shi, M. Radovic, E. Rienks, G. Zwicknagl, K. Matho, J. W. Allen, C. Laubschat, C. Geibel, and D. V. Vyalikh
“Temperature-Independent Fermi Surface in the Kondo Lattice YbRh2Si2”
Phys. Rev. X 5, 011028 – Published 12 March 2015
212. D. Usachov, A. Fedorov, M.M. Otrokov, A. Chikina, O. Vilkov, A. Petukhov,
A.G. Rybkin, Yu.M. Koroteev, E.V. Chulkov, V.K. Adamchuk, A. Grüneis, C. Laubschat, and D.V. Vyalikh
„Observation of Single-Spin Dirac Fermions at the Graphene/Ferromagnet Interface”
Nano Lett. 15 (4), 2396 (2015)
213. D. Usachov, A. Fedorov, A. Petukhov, O. Vilkov, A. Rybkin, M.M. Otrokov,
A. Arnau, E.V. Chulkov, L.V. Yashina, M. Farjam, V.K. Adamchuk, B.V.Senkovskiy, C. Laubschat, and Denis V. Vyalikh
“Epitaxial B-Graphene: Large-Scale Growth and Atomic Structure”
ACS NANO 9, 7314 (2015)
2016:
214. S. Patil, A. Generalov, M. Güttler, P. Kushwaha, A. Chikina, K. Kummer, T.Rödel,
A. Santander-Syro, N. Caroca-Canales, C. Geibel, S. Danzenbächer, Yu. Kucherenko, C. Laubschat, J. Allen, and D. Vyalikh
"ARPES view on surface and bulk hybridization phenomena in the antiferromagnetic Kondo lattice CeRh2Si2"
Nature Communications 7, 11029 (2016), DOI: 10.1038/ncomms11029
215. M. Güttler, A. Generalov, M.M. Otrokov, K. Kummer, K. Klient, A. Fedorov, A. Chikina, S. Danzenbächer, S. Schulz, E.V. Chulkov, Yu.M. Koroteev, N. Caroca- Canales, M. Shi, M. Radovic, C. Geibel, C. Laubschat, P. Dudin, T.K. Kim, M. Hoesch, K. Krellner, and D.V. Vyalikh
“Robust and tunable itinerant ferromagnetism at the silicon surface of the antiferromagnet GdRh2Si2”
SCIENTIFIC REPORTS 6, 24254 (2016)
216. D.Yu. Usachov, A.V. Fedorov, O.Yu. Vilkov, A.E. Petukhov, A.G. Rybkin, A.Ernst, M.M. Otrokov, E.V. Chulkov, I.I. Ogorodnikov, M.V. Kuznetsov, L.V. Yashina, E.Yu. Kataev, A.V. Erofeevskaya, V.Yu. Voroshnin, V.K. Adamchuk, C.Laubschat, and D.V. Vyalikh
“Large-Scale Sublattice Asymmetry in Pure and Boron-Doped Graphene”,
Nano Letters 16, 4535 (2016)
217. A. A. Makarova, E.V. Grachova, D. Niedzialek, A. I. Solomatina, S. Sonntag A.V. Fedorov, O.Yu. Vilkov, V.S. Neudachina, C. Laubschat, S.P. Tunik, D.V. Vyalikh
“A curious interplay in the films of N-heterocyclic carbene Pt-II complexes upon deposition of alkali metals”,
Scientific Reports 6, 25548 (2016)
2017:
218. A. Generalov, M. Otrokov, A. Chikina, K. Kliemt, K. Kummer, M. Höppner, M. Güttler, S. Seiro, A. Fedorov, S. Schulz, S. Danzenbächer, E. Chulkov, Ch. Geibel, C. Laubschat, P. Dudin, M. Hoesch, T. Kim, M. Radovic, M. Shi, N. Plumb, C. Krellner, D. Vyalikh
"Spin orientation of two-dimensional electrons driven by temperature-tunable competition of spin-orbit and exchange magnetic interactions"
NANO LETTERS 17, 811 (2017)
218. A. Chikina, A. Generalov, K. Kummer, M. Güttler, V. N. Antonov, Yu. Kucherenko, K. Kliemt, C. Krellner, S. Danzenbächer,T. Kim, P. Dudin, C. Geibel, C. Laubschat, and D. V. Vyalikh
“Valence instability in the bulk and at the surface of the antiferromagnet SmRh2Si2”
Phys. Rev. B 95, 155127 (2017)
219. A. Generalov, D. A. Sokolov, A. Chikina, Yu. Kucherenko, V. N. Antonov, L. V. Bekenov, S.Patil, A. D. Huxley, J. W. Allen, K. Matho, K. Kummer, D. V. Vyalikh, and C. Laubschat
“Insight into the temperature dependent properties of the ferromagnetic Kondo lattice YbNiSn”
Phys. Rev. B 95, 184433 (2017)
220. D.Yu. Usachov, V. Yu. Davydov,V. S. Levitskii, V.O. Shevelev, D.E. Marchenko, B.V. Senkovskiy, O.Yu. Vilkov, A.G. Rybkin, L.V. Yashina, E.V. Chulkov, I.Yu. Sklyadneva, Rolf Heid, K.-P. Bohnen, Clemens Laubschat, and D.V. Vyalikhy
“Raman Spectroscopy of Lattice-Matched Graphene on Strongly Interacting Metal Surfaces”
ACS Nano 11, 6336 (2017)
221. M. Kuznetsov, I.I.Ogorodnikov, D.Yu.Usachov, C. Laubschat, D.V.Vyalikh, and L.V.Yashina
“Photoelectron Diffraction and Holography Studies of 2D Materials and Interfaces”
J. Phys. Soc. Jpn. 80, 013601 (2017)
2018:
222. D. Yu. Usachov, A. Fedorov, O. Vilkov, M. Kuznetsov, I. Ogorodnikov, A. Grueneis,
C. Laubschat, D.V. Vyalikh
“Electron-phonon coupling in graphene placed between magnetic Li and Si layers on
Cobalt”
Phys. Rev. B 97, 085132 (2018)
223. K.Kummer, C. Geibel, C. Krellner, G. Zwicknagl, C. Laubschat, N.G. Brookes, and D.V. Vyalikh
"Similar temperature scale for valence changes in Kondo lattices with different Kondo temperatures",
Nature Commun. 9, 2011 (2018) DOI: 10.1038/s41467-018-04438-8
224. D. Yu. Usachov, K.A. Bokai, D.E. Marchenko, A.V. Fedorov, V.O. Shevelev, O. Yu. Vilkov, E.Yu. Kataev, L.V. Yashina, E. Rühl, C. Laubschat and D.V. Vyalikh
“Cobalt-assisted recrystallization and alignment of pure and doped graphene”
Nanoscale 10, 12123 (2018)