Publications

Linear colossal magnetoresistance and magnetic textures in LaTiO₃ thin films on SrTiO₃
T. Tschirner, B. Leikert, F. Kern, D. Wolf, A. Lubk, M. Kamp, K. Miller, F. Hartmann, S. Höfling, B. Büchner, J. Dufouleur, M. Gabay, M. Sing, R. Claessen, and L. Veyrat
Phys. Rev. B 108, 245405 (2023)

Orbital-selective metal skin induced by alkalimetal-dosing Mott-insulating Ca₂RuO₄
M. Horio, F. Forte, D. Sutter, M. Kim, C.G. Fatuzzo, C.E. Matt, S. Moser, T. Wada, V. Granata, R. Fittipaldi, Y. Sassa, G. Gatti, H.M. Rønnow, M. Hoesch, T.K. Kim, C. Jozwiak, A. Bostwick, E. Rotenberg, I. Matsuda, A. Georges, G. Sangiovanni, A. Vecchione, M. Cuoco and J. Chang
Commun. Phys. 6 323 (2023)

Saturation of the anomalous Hall effect at high magnetic fields in altermagnetic RuO₂
T. Tschirner, P. Keßler, R. Dario Gonzalez Betancourt, T. Kotte, D. Kriegner, B. Büchner, J. Dufouleur, M. Kamp, V. Jovic, L. Smejkal, J. Sinova, R. Claessen, T. Jungwirth, S. Moser, H. Reichlova, and L. Veyrat
APL Mater. 11, 101103 (2023)

Temperature dependent ARPES of the metallic-like bands in Si(553)-Au
L. Dudy, P. Chudzinski, J. Aulbach, V. Rogalev, J. Schäfer, and R. Claessen
Surf. Sci. 737, 122356 (2023)

Interface band engineering in LaAlO₃/SrTiO₃ heterostructures
J. Gabel, M.Schmitt, P. Scheiderer, M. Zapf, M. Stübinger, S. Huang,  C. Schlueter, T.-L. Lee, M. Sing, and R. Claessen
Phys. Rev. B 108, 045125 (2023)

Two-dimensional ferromagnetic extension of a topological insulator
P. Kagerer, C.I. Fornari, S. Buchberger, T. Tschirner, L. Veyrat, M. Kamp, A.V. Tcakaev, V. Zabolotnyy, S.L. Morelhão, B. Geldiyev, S. Müller, A. Fedorov, E. Rienks, P. Gargiani, M. Valvidares, L. Folkers, A. Isaeva, B. Büchner, V. Hinkov, R. Claessen, H. Bentmann, and F. Reinert
Phys. Rev. Res. 5, L022019 (2023)

Moiré pattern formation in epitaxial growth on a covalent substrate: Sb on InSb(111)A
B. Liu, T. Wagner, S. Enzner, P. Eck, M. Kamp, G. Sangiovanni, and R. Claessen 
Nano Lett. 23, 3189 (2023)

Specific Capacitance of RuO₂(110) Depends Sensitively on Surface Order
C. Reiser, P. Keßler, M. Kamp, V. Jovic and S. Moser
J. Phys. Chem. C 127, 3682 (2023) 

A toy model for dichroism in angle resolved photoemission
S. Moser
J. Electron Spectrosc. Relat. Phenom. 262, 147278 (2023)

Assessing Nontrivial Topology in Weyl Semimetals by Dichroic Photoemission
J. Schusser, H. Bentmann, M. Ünzelmann, T. Figgemeier, C.-H. Min, S. Moser, J. N. Neu, T. Siegrist and F. Reinert
Phys. Rev. Lett. 129, 246404 (2022)

A Covalent Organic Framework for Cooperative Water Oxidation
S. Karak, V. Stepanenko, M. A. Addicoat, P. Keßler, S. Moser, F. Beuerle and F. Würthner
J. Am. Chem. Soc. 144, 17661–17670 (2022)

Dimensionally stable anodes for the oxygen evolution reaction: Ruthenium dioxide on a nickel metal substrate
V. Jovic, M. Sullivan, P. Keßler, P. Gupta, H. Fiedler, S. Spencer, S. Moser, A. T. Marshall and J. V Kennedy
Int. J. Hydrogen Energy. 47, 33374–33381 (2022)

Real-space obstruction in quantum spin Hall insulators
P. Eck, C. Ortix, A. Consiglio, J. Erhardt, M. Bauernfeind, S. Moser, R. Claessen, D. Di Sante, and G. Sangiovanni
Phys. Rev. B 106, 195143 (2022)

Observation of room temperature excitons in an atomically thin topological insulator
M. Syperek, R. Stühler, A. Consiglio, P. Holewa, P. Wyborski, Ł. Dusanowski, F. Reis, S. Höfling, R. Thomale, W. Hanke, R. Claessen, D. Di Sante, and C. Schneider
Nat. Commun. 13, 6313 (2022)

Band inversion induced large-gap quantum spin Hall states in III-Bi-monolayer/SiO₂
Y. Xia, S. Jin, J. Hu, R. Claessen, W. Hanke, R. Thomale, and G. Li
Phys. Rev. B 106, 165203 (2022)

Large-gap quantum anomalous Hall states induced by functionalizing buckled Bi-III monolayer/Al₂O₃
S. Jin, Y. Xia, W. Shi, J. Hu, R. Claessen, W. Hanke, R. Thomale, and G. Li
Phys. Rev. B 106, 125151 (2022)

Hard x-ray angle-resolved photoemission from a buried high-mobility electron system
M. Zapf, M. Schmitt, J. Gabel, P. Scheiderer, M. Stübinger, B. Leikert, G. Sangiovanni, L. Dudy, S. Chernov, S. Babenkov, D. Vasilyev, O. Fedchenko, K. Medjanik, Yu. Matveyev, A. Gloskowski, C. Schlueter, T.-L. Lee, H.-J. Elmers, G. Schönhense, M. Sing, and R. Claessen
Phys. Rev. B 106, 125137 (2022)

Indium epitaxy on SiC(0001): A roadmap to large scale growth of the quantum spin Hall insulator indenene
J. Erhardt, M. Bauernfeind, P. Eck, M. Kamp, J. Gabel, T.-L. Lee, S. Moser, G. Sangiovanni, and R. Claessen
J. Phys. Chem. C 126, 16289 (2022)

Ultrafast momentum-resolved hot electron dynamics in the two-dimensional topological insulator bismuthene
J. Maklar, R. Stühler, M. Dendzik, T. Pincelli, S. Dong, S. Beaulieu, A. Neef, G. Li, M. Wolf, R. Ernstorfer, R. Claessen, and L. Rettig
Nano Lett. 22, 5420 (2022)

Effective lifting of the topological protection of quantum spin Hall edge states by edge coupling
R. Stühler, A. Kowalewski, F. Reis, D. Jungblut, F. Dominguez, B. Scharf, G. Li, J. Schäfer, E.M. Hankiewicz, and R. Claessen
Nat. Commun. 13, 3480 (2022)

Impact of surface apical oxygen on the electronic structure of ultrathin transition metal oxide films
J. Gabel, M. Pickem, P. Scheiderer, L. Dudy, B. Leikert, M. Fuchs, M. Stübinger, M. Schmitt, J. Küspert,  G. Sangiovanni, J.M. Tomczak, K. Held, T.-L. Lee, R. Claessen, and M. Sing
Adv. Electron. Mater. 2021, 2101006 (2021)

Partial gap in two-leg ladders with Rashba-interactions and its experimental signatures in Si(553)-Au
P. Chudinsky, J. Aulbach, J. Schäfer, R. Claessen, and L. Dudy
Phys. Rev. B 104, 205407 (2021)

Photoemission study on pristine and Ni-doped SrTiO₃ thin films
F. Alarab, K. Hricovini, B. Leikert, L. Nicolai, M. Fanciulli, O. Heckmann, C. Richter, L. Prušakova, Z. Jansa, P. Šutta, J. Rault, P. Lefevre, M. Muntwiller, R. Claessen, and Ján Minár
Phys. Rev. B 104, 165129 (2021)

Design and realization of topological Dirac fermions on a triangular lattice
M. Bauernfeind, J. Erhardt, P. Eck, P.K. Thakur, J. Gabel, T.-L. Lee, J. Schäfer, S. Moser, D. Di Sante, R. Claessen, and G. Sangiovanni
Nat. Commun. 12, 5396 (2021)

Bulk spin polarization of magnetite from spin-resolved hard x-ray photoelectron spectroscopy
M. Schmitt, O. Kirilmaz, S. Chernov, S. Babenkov, D. Vasilyev, O. Fedchenko, K. Medjanik, Yu. Matveyev, A. Gloskovskii, C. Schlueter, A. Winkelmann, L. Dudy, H.-J. Elmers, G. Schönhense, M. Sing, and R. Claessen
Phys. Rev. B 104, 045129 (2021)

Magnetic order of tetragonal CuO ultrathin films
N. Ortiz Hernández, Z. Salman, T. Prokscha, A. Suter, J. R. L. Mardegan, S. Moser, A. Zakharova, C. Piamonteze, and U. Staub
Phys. Rev. B 103, 224429 (2021)

Hard X-ray photoemission spectroscopy of LaVO₃/SrTiO₃: Band alignment and electronic reconstruction
M. Stübinger, J. Gabel, P. Scheiderer, M. Zapf, M. Schmitt, P. Schütz, B. Leikert, J. Küspert, M. Kamp, P.K. Thakur, T.-L. Lee, P. Potatov, A. Lubk, B. Büchner, M. Sing, and R. Claessen
Phys. Rev. B 103, 235128 (2021), Editors' Suggestion

Controlling the electronic interface of AlO_x/SrTiO₃ heterostructures
B. Leikert, J. Gabel, M. Schmitt, M. Stübinger, P. Scheiderer, L. Veyrat, T.-L. Lee, M. Sing, and R. Claessen
Phys. Rev. Mater. 5, 065003 (2021)

Room temperature memristive switching in patterned LaAlO₃/SrTiO₃ nanowires with laterally defined gates
K. Miller, F. Hartmann, B. Leikert, S. Kuhn, J. Gabel, M. Sing, R. Claessen and S. Höfling
Appl. Phys. Lett. 118, 153502 (2021)

Momentum for Catalysis: How Surface Reactions Shape the RuO₂ Flat Surface State
V. Jovic, A. Consiglio, K. E. Smith, C. Jozwiak, A. Bostwick, E. Rotenberg, D. Di Sante, and S. Moser
ACS Catal. 11, 1749 (2021)

Electronic structure of epitaxial perovskite films in the two-dimensional limit - role of the surface termination
P. Schütz, M. Kamp, D. Di Sante, A. Lubk, B. Büchner, G. Sangiovanni, M. Sing, and R. Claessen
Appl. Phys. Lett. 116, 201601 (2020)

Atomic-scale interface structure in domain matching epitaxial BaBiO₃ thin films grown on SrTiO₃ substrates
L. Jin, M. Zapf, M. Stübinger, M. Kamp, M. Sing, R. Claessen, and C.L. Jia
Phys. Status Solidi RRL 2000054 (2020)

Tomonaga-Luttinger liquid in the edge channels of a quantum spin Hall insulator
R. Stühler, F. Reis, T. Müller, T. Helbig, T. Schwemmer, R. Thomale, J. Schäfer, and R. Claessen
Nat. Phys. 16, 47 (2020)

Light-Induced Renormalization of the Dirac Quasiparticles in the Nodal-Line Semimetal ZrSiSe
G. Gatti, A. Crepaldi, M. Puppin, N. Tancogne-Dejean, L. Xian, U. De Giovannini, S. Roth, S. Polishchuk, Ph. Bugnon, A. Magrez, H. Berger, F. Frassetto, L. Poletto, L. Moreschini, S. Moser, A. Bostwick, Eli Rotenberg, A. Rubio, M. Chergui, and M. Grioni
Phys. Rev. Lett. 125, 076401 (2020)

Tuning transport across MoS₂/graphene interfaces via as-grown lateral heterostructures
S. Subramanian, K. Xu, Y. Wang, S. Moser, N. A. Simonson, D. Deng, V. H. Crespi, S. K. Fullerton-Shirey, and J. A. Robinson
npj 2D Mater. Appl. 4, 9 (2020)

Photophysics and Electronic Structure of Lateral Graphene/MoS₂ and Metal/MoS₂ Junctions
S. Subramanian, Q. T. Campbell, S. Moser, J. Kiemle, P. Zimmermann, P. Seifert, F. Sigger, D. Sharma, H. Al-Sadeg, M. Labella, D. Waters, R. M. Feenstra, R. J. Koch, C. Jozwiak, A. Bostwick, E. Rotenberg, I. Dabo, A. W. Holleitner, T. E. Beechem, U. Wurstbauer, and J. A. Robinson
ACS Nano 14, 16663 (2020)

Radial Spin Texture of the Weyl Fermions in Chiral Tellurium
G. Gatti, D. Gosálbez-Martínez, S. S. Tsirkin, M. Fanciulli, M. Puppin, S. Polishchuk, S. Moser, L. Testa, E. Martino, S. Roth, Ph. Bugnon, L. Moreschini, A. Bostwick, C. Jozwiak, E. Rotenberg, G. Di Santo, L. Petaccia, I. Vobornik, J. Fujii, J. Wong, D. Jariwala, H. A. Atwater, H. M. Rønnow, M. Chergui, O. V. Yazyev, M. Grioni, and A. Crepaldi
Phys. Rev. Lett. 125, 216402 (2020)

Orbital-Driven Rashba Effect in a Binary Honeycomb Monolayer AgTe
M. Ünzelmann, H. Bentmann, P. Eck, T. Kißlinger, B. Geldiyev, J. Rieger, S. Moser, R. C. Vidal, K. Kißner, L. Hammer, M. A. Schneider, T. Fauster, G. Sangiovanni, D. Di Sante, and F. Reinert
Phys. Rev. Lett. 124, 176401 (2020)

Tailoring the topological surface state in ultrathin α-Sn (111) films
V.A. Rogalev, F. Reis, F. Adler, M. Bauernfeind, J. Erhardt, A. Kowalewski, M.R. Scholz, L. Dudy, L.B. Dudy, T. Hesjedal, M. Hoesch, G. Bihlmayer, J. Schäfer, and R. Claessen
Phys. Rev. B 100, 245144 (2019)

Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ
J.M.P. Carmelo, T. Čadež, D.K. Campbell, M. Sing, and R. Claessen
Phys. Rev. B 100, 245202 (2019)

Correlation-driven charge order in a frustrated two-dimensional atom lattice
F. Adler, S. Rachel, M. Laubach, J. Maklar, A. Fleszar, J. Schäfer, and R. Claessen
Phys. Rev. Lett. 123, 086401 (2019)

Structural and stoichiometric modifications in ultrathin epitaxial BaBiO₃ films
M. Zapf, S. Elsässer, M. Stübinger, P. Scheiderer, J. Geurts, M. Sing, and R. Claessen
Phys. Rev. B 99, 245308 (2019)

Non-trivial topological valence bands of common diamond and zinc-blende semiconductors
T. Rauch, V.A. Rogalev, M. Bauernfeind, J. Maklar, F. Reis, F. Adler, S. Moser, J. Weis, T.-L. Lee, P.K. Thakur, J.Schäfer, R. Claessen, J. Henk, and I. Mertig
Phys. Rev. Materials 3, 064203 (2019)

Imaging the formation of ferromagnetic domains at the LaAlO₃/SrTiO₃ interface
Y. Motoyui, T. Taniuchi, P. Scheiderer, L. Jiyeon, J. Gabel, F. Pfaff, M. Sing, M. Lippma, R. Claessen, and S. Shin
J. Phys. Soc. Jpn. 88, 034717 (2019)

Towards topological quasi-freestanding stanene via substrate engineering
D. Di Sante, P. Eck, M. Bauernfeind, M. Will, R. Thomale, J. Schäfer, R. Claessen, and G. Sangiovanni
Phys. Rev. B 99, 035145 (2019)

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Dimensionality-driven metal-insulator-transition in spin-orbit coupled SrIrO₃
P. Schütz, D. Di Sante, L. Dudy, J. Gabel, M. Stübinger, M. Kamp, Y. Huang, M. Capone, M.-A. Husanu, V.N. Strocov, G. Sangiovanni, M. Sing, and R. Claessen
Phys. Rev. Lett. 119, 256404 (2017)

Photoemission of buried metal oxide interfaces
M. Sing, book chapter in N. Pryds, V. Esposito (eds.): Metal Oxide-Based Thin Film Structures, Metal Oxides Series ed. by G. Korotcenkov, Elsevier 2017

Microscopic origin of the mobility enhancement at a spinel/perovskite oxide heterointerface revealed by photoemission spectroscopy
P. Schütz, D.V. Christensen, V. Borisov, F. Pfaff, P. Scheiderer, L. Dudy, M. Zapf, J. Gabel, Y.Z. Chen, N. Pryds, V. Rogalev, V. Strocov, C. Schlueter, T.-L. Lee, V. Borisov, H.O. Jeschke, R. Valentí, M. Sing, and R. Claessen
Phys. Rev. B 96, 161409(R) (2017)

One-dimensional quantum matter: Gold-induced nanowires on semiconductor surfaces
L. Dudy, J. Aulbach, T. Wagner, J. Schäfer, and R. Claessen
J. Phys.: Condens. Matter (Topical Review) 29, 433001 (2017)

Parity-breaking in a double atomic chain system
J. Aulbach, S.C. Erwin, J. Kemmer, M. Bode, J. Schäfer, and R. Claessen
Phys. Rev. B 96, 081406(R) (2017)

Bismuthene on a SiC substrate: A candidate for a high-temperature quantum spin Hall material
F. Reis, G. Li, L. Dudy, M. Bauernfeind, S. Glass, W. Hanke, R. Thomale, J. Schäfer, and R. Claessen
Science 357, 287 (2017)

Influence of oxygen vacancies on two-dimensional electron systems at SrTiO₃-based interfaces and surfaces
M. Sing, H.O. Jeschke, F. Lechermann,  Roser Valentí, and R. Claessen
Eur. Phys. J. - Special Topics 226, 2457 (2017)

Disentangling specific and generic doping mechanisms for oxide heterostructures 
J. Gabel, M. Zapf, P. Scheiderer, P. Schütz, L. Dudy, M. Stübinger, C. Schlueter, T.-L. Lee, M. Sing, and R. Claessen
Phys. Rev. B 95, 195109 (2017)

Double band inversion in α-Sn: Appearance of topological surface states and the role of orbital composition
V.A. Rogalev, T. Rauch, M.R. Scholz, F. Reis, L. Dudy, A. Fleszar, M.-A. Husanu, V.N. Strocov, J. Henk, I. Mertig, J. Schäfer, and R. Claessen
Phys. Rev. B 95, 161117(R) (2017)

Gate-tunable, normally-on to normally-off memristance transition in patterned LaAlO₃/SrTiO₃ interfaces
P. Maier, F. Hartmann, J. Gabel, M. Frank, S. Kuhn, P. Scheiderer, B. Leikert, M. Sing, L. Worschech, R. Claessen, and S. Höfling
Appl. Phys. Lett. 110, 093506 (2017)

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Two-dimensional interaction of spin chains in the Si(553)-Au nanowire system
B. Hafke, T. Frigge, T. Witte, B. Krenzer, J. Aulbach, J. Schäfer, R. Claessen, S.C. Erwin, and M. Horn-von Hoegen
Phys. Rev. B 94, 161403(R) (2016)

Three-dimensional electronic structures and the metal-insulator transition in Ruddlesden-Popper iridates 
A. Yamasaki, H. Fuijiwara, S. Tachibana, D. Iwasaki, Y. Higashino, C. Yoshimi, K. Nakagawa, Y. Nakatani, K. Yamagami, H. Aratani, O. Kirilmaz, M. Sing, R. Claessen, H. Watanabe, T. Shirakawa, A. Naitoh, K. Takase, J. Matsuno, A. Sekiyama, and Y. Saitoh
Phys. Rev. B 94, 115103 (2016)

In situ control of separate electronic phases on SrTiO3-surfaces by oxygen dosing
L. Dudy, M. Sing, P. Scheiderer, J.D. Denlinger, P. Schütz, J. Gabel, M. Buchwald, C. Schlueter, T.-L. Lee, and R. Claessen 
Adv. Mat. 28, 7443 (2016)

Atomic-scale mapping of layer-by-layer hydrogen etching and passivation of SiC(0001) substrates
S. Glass, F. Reis, M. Bauernfeind, J. Aulbach, M. Scholz, F. Adler, L. Dudy, G. Li, R. Claessen, and J. Schäfer 
J.  Phys. Chem. C 120, 10361 (2016)

Two-dimensional crossover and strong coupling of plasmons in arrays of one-dimensional atomic wires
T. Lichtenstein, J. Aulbach, J. Schäfer, R. Claessen, C. Tegenkamp, and H. Pfnür
Phys. Rev. B 93, 161408(R) (2016)

Spin chains and electron transfer at stepped silicon surfaces
J. Aulbach, S.C. Erwin, R. Claessen, and J. Schäfer
Nano Lett. 16, 2698 (2016)

Two-dimensional but not flat: an all-boron graphene with a corrugated structure
R.D. Dewhurst, R. Claessen, and H. Braunschweig
Angew. Chem. Int. Ed. 55, 4866 (2016) 
Angew. Chem. 128, 4948 (2016) 

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Surface/interface coupling in an oxide heterostructure: impact of adsorbates on LaAlO3/SrTiO3
P. Scheiderer, F. Pfaff, J. Gabel, M. Kamp, M. Sing, and R. Claessen
Phys. Rev. B 92, 195422 (2015)

Dimensionality-tuned electronic structure of nickelate superlattices explored by soft-x-ray angle-resolved photoelectron spectroscopy
G. Berner, M. Sing, F. Pfaff, E. Benckiser, M. Wu, G. Christiani, G. Logvenov, H.-U. Habermeier, M. Kobayashi, V.N. Strocov, T. Schmitt, H. Fujiwara, A. Sekiyama, S. Suga, B. Keimer, and R. Claessen
Phys. Rev. B 92, 125130 (2015)

Triangular spin-orbit-coupled lattice with strong Coulomb correlations: Sn atoms on a SiC(0001) substrate
S. Glass, G. Li, F. Adler, J. Aulbach, A. Fleszar, R. Thomale, W. Hanke, R. Claessen, and J. Schäfer
Phys. Rev. Lett. 114, 247602 (2015)

Band bending and alignment at the spinel/perovskite γ-Al2O3/SrTiO3 heterointerface
P. Schütz, F. Pfaff, P. Scheiderer, Y.Z. Chen, N. Pryds, M. Gorgoi, M. Sing, and R. Claessen
Phys. Rev. B 91, 165118 (2015)

Monitoring non-pseudomorphic epitaxial growth of spinel/perovskite oxide heterostructures by reflection high-energy electron diffraction
P. Schütz, F. Pfaff, P. Scheiderer, M. Sing, and R. Claessen
Appl. Phys. Lett. 106, 063108 (2015)

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Electronic reconstruction at the isopolar LaTiO3/LaFeO3 interface: An x-ray photoemission and density-functional theory study
J. E. Kleibeuker, Z. Zhong, H. Nishikawa, J. Gabel, A. Müller, F. Pfaff, M. Sing, K. Held, R. Claessen, G. Koster, and G. Rijnders
Physical Review Letters 113, 237402 (2014) 

Valence band and core level photoemission of Au/Ge(001): Band mapping and bonding sites
S. Meyer, L. Dudy, J. Schäfer, C. Blumenstein, P. Höpfner, T.E. Umbach, A. Dollinger, X.Y. Cui, L. Patthey, and R. Claessen
Physical Review B 90, 125409 (2014) 

Bulk nature of layered perovskite iridates beyond the Mott scenario: An approach from a bulk-sensitive photoemission study
A. Yamasaki, H. Fujiwara, A. Higashiya, A. Irizawa, O. Kirilmaz, F. Pfaff, P. Scheiderer, J. Gabel, M. Sing, T. Muro, M. Yabashi, K. Tamasaku, H. Sato, H. Namatame, M. Taniguchi, A. Hloskovskyy, H. Yoshida, H. Okabe, M. Isobe, J. Akimitsu, W. Drube , R. Claessen, T. Ishikawa, S. Imada, A. Sekiyama, and S. Suga
Physical Review B 89, 121111(R) (2014)

Interface-induced modulation of charge and polarization in thin film Fe3O4
H. Tian, J. Verbeeck, S. Brück, M. Paul, D. Kufer, M. Sing, R. Claessen, and G. Van Tendeloo
Advanced Materials 26, 461 (2014) 

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Elemental topological insulator with tunable Fermi level: Strained α-Sn on InSb(001)
A. Barfuss, L. Dudy, M. R. Scholz, H. Roth, P. Höpfner, C. Blumenstein, G. Landolt, J. H. Dil, N. C. Plumb, M. Radovic, A. Bostwick, E. Rotenberg, A. Fleszar, G. Bihlmayer, D. Wortmann, G. Li, W. Hanke, R. Claessen, and J. Schäfer
Physical Review Letters 111, 157205 (2013)

Evidence for long-range spin order instead of a Peierls transition in Si(553)-Au chains
J. Aulbach, J. Schäfer, S.C. Erwin, S. Meyer, C. Loho, J. Settelein, and R. Claessen
Physical Review Letters 111, 137203 (2013)

Band alignment in LaAlO3/SrTiO3 oxide heterostructures inferred from hard x-ray photoelectron spectroscopy
G. Berner, A. Müller, F. Pfaff, J. Walde, C. Richter J. Mannhart, S. Thiess, A. Glosgovskii, W. Drube, M. Sing, and R. Claessen
Physical Review B 88, 115111 (2013)

Direct k-space mapping of the electronic structure in an oxide-oxide interface
G. Berner, M. Sing, H. Fujiwara, A. Yasui, Y. Saitoh, A. Yamasaki, Y. Nishitani, A. Sekiyama, N. Pavlenko, T. Kopp, C. Richter, J. Mannhart, S. Suga, and R. Claessen
Physical Review Letters 110, 247601 (2013)

Absence of metallicity in K-doped picene: Importance of electronic correlations
A. Ruff, M. Sing, R. Claessen, H. Lee, M. Tomić, H.O. Jeschke, and R. Valentí
Physical Review Letters 110, 216403 (2013)

Magnetic order in a frustrated two-dimensional atom lattice at a semiconductor surface
G. Li, P. Höpfner, J. Schäfer, C. Blumenstein, S. Meyer, A. Bostwick, E. Rotenberg, R. Claessen, and W. Hanke
Nature Communications 4, 1620 (2013)

Polaron physics and crossover transition in magnetite probed by pressure-dependent infrared spectroscopy 
J. Ebad-Allah, L. Baldassarre, M. Sing, R. Claessen, V.A.M. Brabers, and C.A. Kuntscher
Journal of Physics: Condensed Matter 25, 035602 (2013)

Au-induced quantum chains on Ge(001) - symmetries, long-range order, and conduction path
C. Blumenstein, S. Meyer, S. Mietke, J. Schäfer, A. Bostwick, R. Matzdorf, and R. Claessen
Journal of Physics: Condensed Matter 25, 014015 (2013)

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Momentum spectrometer for electron-electron coincidence studies on superconductors
R. Wallauer, S. Voss, L. Foucar, T. Bauer, D. Schneider, J. Titze, B. Ulrich, K. Kreidi, N. Neumann, T. Havermeier, M. Schäffler, T. Jahnke, A. Czasch, L. Schmidt, A. Kanigel, J.-C. Campuzano, H. Jeschke, R. Valenti, A. Müller, G. Berner, M. Sing, R. Claessen, H. Schmidt-Böcking, and Reinhard Dörner
Review of Scientific Instruments 83, 103905 (2012)

Pressure dependence of the Verwey transition in magnetite: An infrared spectroscopic point of view
J. Ebad-Allah, L. Baldassarre, M. Sing, R. Claessen, V.A.M. Brabers, and C.A. Kuntscher
Journal of Applied Physics 112, 073524 (2012)

Surface phonons of Ge(001) and their correlation with the p(2×1) and c(4×2) reconstruction, evidenced by Raman spectroscopy
J. Räthel, E. Speiser, N. Esser, U. Bass, S. Meyer, J. Schäfer, and J. Geurts
Physical Review B 86, 035312 (2012)

Structural examination of Au/Ge(001) by surface x-ray diffraction and scanning tunneling microscopy
S. Meyer, T.E. Umbach, C. Blumenstein, J. Schäfer, R. Claessen, S. Sauer, S.J. Leake, P.R. Willmott, M. Fiedler, and F. Bechstedt
Physical Review B 85, 235439 (2012)

Unoccupied electronic structure of TiOCl studied by x-ray absorption near-edge spectroscopy
S. Glawion, M.W. Haverkort, G. Berner, M. Hoinkis, G. Gavrila, R. Kraus, M. Knupfer, M. Sing and R. Claessen
Journal of Physics: Condensed Matter 24, 255602 (2012)

Electrons do the split
R. Claessen
Nature 485, 46 (2012)

Three-dimensional spin rotations at the Fermi surface of a strongly spin-orbit coupled surface system
P. Höpfner, J. Schäfer, A. Fleszar, J.H. Dil, B. Slomski, F. Meier, C. Loho, C. Blumenstein, L. Patthey, W. Hanke, and R. Claessen
Physical Review Letters 108, 186801 (2012), Editors´ Suggestion

Debate over dispersion direction in a Tomonaga-Luttinger-liquid system: Reply
C. Blumenstein, J. Schäfer, S. Mietke, S. Meyer, A. Dollinger, M. Lochner, X.Y. Cui, L. Patthey, R. Matzdorf, and R. Claessen
Nature Physics 8, 174 (2012)

Magnetic and electronic properties of the interface between half metallic Fe3O4 and semiconducting ZnO
S. Brück, M. Paul, H. Tian, A. Müller, D. Kufer, C. Praetorius, K. Fauth, P. Audehm, E. Goering, J. Verbeeck, G. van Tendeloo, M. Sing, and R. Claessen
Applied Physics Letters 100, 081603 (2012)

Magnetometry of buried layers – linear magnetic dichroism and spin detection in angular resolved hard x-ray photoelectron spectroscopy
A. Gloskovskii, G. Stryganyuk, G.H. Fecher, C. Felser, S. Thiess, H. Schulz-Ritter, W. Drube, G. Berner, M. 
Sing, R. Claessen, and M. Yamamoto
Journal of Electron Spectroscopy and Related Phenomena 185, 47 (2012)

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Surface structure, morphology, and growth mechanism of Fe3O4/ZnO thin films
M. Paul, D. Kufer, A. Müller, A. Ruff, M. Kamp, N.J.C. Ingle, M. Sing, and R. Claessen
Journal of Applied Physics 110, 073519 (2011)

Fe3O4 on ZnO: A spectroscopic study of film and interface properties
A. Müller, A. Ruff, M. Paul, A. Wetscherek, G. Berner, U. Bauer, C. Praetorius, K. Fauth, M. Przybylski, M. Gorgoi, M. Sing, and R. Claessen
Thin Solid Films 520, 368 (2011)

Symmetry-breaking phase transition without Peierls mechanism in conducting monoatomic chains
C. Blumenstein, J. Schäfer, M. Morresi, S. Mietke, R. Matzdorf, and R. Claessen
Physical Review Letters 107, 165702 (2011)

High purity chemical etching and thermal passivation process for Ge(001) as nanostructure template
C. Blumenstein, S. Meyer, A. Ruff, B. Schmid, J. Schäfer and R. Claessen
Journal of Chemical Physics 135, 064201 (2011)

Two-spinon and orbital excitations of the spin-Peierls system TiOCl
S. Glawion, J. Heidler, M.W. Haverkort, L.C. Duda, T. Schmitt, V.N. Strocov, C. Monney, K. J. Zhou, A. Ruff, M. Sing, and R. Claessen
Physical Review Letters 107, 107402 (2011)

Atomically controlled quantum chains hosting a Tomonaga-Luttinger liquid
C. Blumenstein, J. Schäfer, S. Mietke, S. Meyer, A. Dollinger, M. Lochner, X.Y. Cui, L. Patthey, R. Matzdorf, and R. Claessen
Nature Physics 7, 776 (2011)

Electronic band structure of the two-dimensional metallic electron system Au/Ge(111)
P. Höpfner, J. Schäfer, A. Fleszar, S. Meyer, C. Blumenstein, T. Schramm, M. Heßmann, X. Cui, L. Patthey, W. Hanke, and R. Claessen
Physical Review B 83, 235435 (2011)

Strictly one-dimensional electron system in Au chains on Ge(001) revealed by photoelectron k-space mapping
S. Meyer, J. Schäfer, C. Blumenstein, P. Höpfner, A. Bostwick, J.L. McChesney, E. Rotenberg, and R. Claessen
Physical Review B 83, 121411(R) (2011)

Photoemission of a doped Mott insulator: Spectral weight transfer and a qualitative Mott-Hubbard description
M. Sing, S. Glawion, M. Schlachter, M.R. Scholz, K. Goß, J. Heidler, G. Berner, and R. Claessen
Physical Review Letters 106, 056403 (2011)

Fe3O4/ZnO: A high-quality magnetic oxide-semiconductor heterostructure by reactive deposition
M. Paul, D. Kufer, A. Müller, S. Brück, E. Goering, M. Kamp, J. Verbeeck, H. Tian, G. van Tendeloo, N.J.C. Ingle, M. Sing, and R. Claessen 
Applied Physics Letters 98, 012512 (2011)

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X-ray absorption measurements on nanoparticle systems: self assembled arrays and dispersions
C. Antoniak, A. Warland, M. Darbandi, M. Spasova, A. Trunova, K. Fauth, E.F. Aziz, M. Farle and H. Wende
J. Phys. D: Appl. Phys. 43, 474007 (2010)

Resonant inelastic x-ray scattering on LaAlO3/SrTiO3 oxide heterostructures
G. Berner, S. Glawion, J. Walde, F. Pfaff, H. Hollmark, L.-C. Duda, S. Paetel, C. Richter, J. Mannhart, M. Sing, and R. Claessen
Physical Review B 82, 241405(R) (2010)

Two pressure-induced structural phase transitions in TiOCl
J. Ebad-Allah, A. Schönleber, S. van Smaalen, M. Hanfland, M. Klemm, S. Horn, S. Glawion, M. Sing, R. Claessen, and C. A. Kuntscher
Physical Review B 82, 134117 (2010)

Structural components of the Pt/Si(111) sqrt(3) x sqrt(3) surface from scanning tunneling microscopy
P. Höpfner, M. Wisniewski, F. Sandrock, J. Schäfer, and R. Claessen
Physical Review B 82, 075431 (2010)

Composition dependence of exchange stiffness in FexPt1-x alloys
C. Antoniak, J. Lindner, K. Fauth, J.-U. Thiele, J. Min'ar, S. Mankovsky, H. Ebert, M. Farle and H. Wende
Physical Review B 82, 064403 (2010)

Final-state effects in high-resolution angle-resolved photoemission from Ni(110)
X.Y. Cui, E.E. Krasovskii, V.N. Strocov, A. Hofmann, J. Schäfer, R. Claessen and L. Patthey
Physical Review B 81, 245118 (2010)

Possible metallization of the Mott insulators TiOCl and TiOBr: effects of doping and external pressure
C.A. Kuntscher, M. Klemm, S. Horn, M. Sing and R. Claessen
European Physical Journal (Special Topics) 180, 29 (2010)

Coupling of Fe and uncompensated Mn moments in exchange-biased Fe/MnPd
S. Brück, S. Macke, E. Goering, X. Ji, Q. Zhan, and K. M. Krishnan
Physical Review B 81, 134414 (2010)

Forcing ferromagnetic coupling between rare earth and 3d ferromagnetic films
B. Sanyal, C. Antoniak, T. Burkert, B. Krumme, A. Warland, F. Stromberg, C. Praetorius, K. Fauth, H. Wende, O. Eriksson
Physical Review Letters 104, 156402 (2010)

Heat conductivity of the spin-Peierls compounds TiOCl and TiOBr
N. Hlubek, M. Sing, S. Glawion, R. Claessen, S. van Smaalen, P.H.M. van Loosdrecht, B. Büchner, and C. Hess
Physical Review B 81, 144428 (2010); also Virtual Journal of Nanoscale Science & Technology 21, 19 (2010)

Anisotropic crystal field, Mott gap, and interband excitations in TiOCl: an electron energy-loss study
R. Kraus, B. Büchner, M. Knupfer, S. Glawion, M. Sing and R. Claessen
Physical Review B 81, 125133 (2010)

First-principles studies of Au-induced nanowires on Ge(001)
S. Sauer, F. Fuchs, F. Bechstedt, C. Blumenstein, J. Schäfer
Physical Review B 81, 075412 (2010)

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Possible metallization of the Mott insulators TiOCl and TiOBr: Effects of doping and external pressure
C.A. Kuntscher, M. Klemm, S. Horn, M. Sing and R. Claessen
European Physical Journal (Special Topics) 180, 29 (2009)

Magnetic properties of Fe nanoclusters on Cu(111) studied with X-ray magnetic circular dichroism
K. Fauth, G.E. Ballentine, C. Praetorius, A. Kleibert, N. Wilken, A. Voitkans, K.-H. Meiwes-Broer
Physica Status Solidi B 247, 1170 (2010)

Filling of the Mott-Hubbard gap in the oxyhalides TiOCl and TiOBr induced by external pressure
C.A. Kuntscher, J. Ebad-Allah, A. Pashkin, S. Frank, M. Klemm, S. Horn, A. Schönleber, S. van Smaalen, M. Hanfland, S. Glawion, M. Sing and R. Claessen
High Pressure Research 29, 509 (2009)

Infrared studies of magnetite under high pressure
J. Ebad-Allah, L. Baldassarre, M. Sing, R. Claessen, V.A.M. Brabers, and C.A. Kuntscher
High Pressure Research 29, 500 (2009)

Self-organized atomic nanowires of noble metals on germanium: atomic structure and electronic properties
J. Schäfer, S. Meyer, C. Blumenstein, K. Roensch, R. Claessen, S. Mietke, M. Klinke, T. Podlich, R. Matzdorf, A. Stekolnikov, S. Sauer, and F. Bechstedt
New Journal of Physics 11, 125011 (2009)

Hard x-ray photoelectron spectroscopy of oxide hybrid and heterostructures: a new method for the study of buried interfaces
R. Claessen, M. Sing, M. Paul, G. Berner, A. Wetscherek, A. Müller and W. Drube
New Journal of Physics 11, 125007 (2009), chosen for IOP Select

Local atomic order and element-specific magnetic moments of Fe3Si thin films on MgO(001) and GaAs(001) substrates
B. Krumme, C. Weis, H. C. Herper, F. Stromberg, C. Antoniak, A. Warland, E. Schuster, P. Srivastava, M. Walterfang, K. Fauth, J. Minár, H. Ebert, P. Entel, W. Keune, and H. Wende
Physical Review B 80, 144403 (2009)

Electronic structure of the two-dimensional Heisenberg antiferromagnet VOCl: a multiorbital Mott insulator
S. Glawion, M.R. Scholz, Y.-Z. Zhang, R. Valentí, T. Saha-Dasgupta, M. Klemm, J. Hemberger, S. Horn, M. Sing and R. Claessen
Physical Review B 80, 155119 (2009)

Inhomogeneous alloying in FePt nanoparticles as a reason for reduced magnetic moments
C. Antoniak, M. Spasova, A. Trunova, K. Fauth, F. Wilhelm, A. Rogalev, J. Minar, H. Ebert, M. Farle and H. Wende
Journal of Physics: Condensed Matter 21, 336002 (2009)

Momentum-resolved single-particle spectral function for TiOCl from a combination of density functional and variational cluster calculations
M. Aichhorn, T. Saha-Dasgupta, R. Valenti, S. Glawion, M. Sing and R. Claessen
Physical Review B 80, 115129 (2009)

Probing the interface of Fe3O4/GaAs thin films by hard x-ray photoelectron spectroscopy
M. Paul, A. Müller, A. Ruff, B. Schmid, G. Berner, M. Sing, R. Claessen and M. Mertin
Physical Review B 79, 233101 (2009)

Renormalization of bulk magnetic electron states at high binding energies
A. Hofmann, X.Y. Cui, J. Schäfer, S. Meyer, P. Höpfner, C. Blumenstein, M. Paul, L. Patthey, E. Rotenberg, J. Bünemann, F. Gebhard, T. Ohm, W. Weber, and R. Claessen
Physical Review Letters 102, 187204 (2009)

Complex magnetic phase in submonolayer Fe stripes on Pt(997)
J. Honolka, T.Y. Lee, K. Kuhnke, D. Repetto, V. Sessi, P. Wahl, A. Buchsbaum, P. Varga, S. Gardonio, C. Carbone, S. R. Krishnakumar, P. Gambardella, M. Komelj, R. Singer, M. Fähnle, K. Fauth, G. Schütz, A. Enders, and K. Kern
Physical Review B 79, 104430 (2009)

Time-resolved X-ray microscopy of nanoparticle aggregates under oscillatory shear
G. K. Auernhammer, K. Fauth, B. Ullrich, J. Zhao, M. Weigand and D. Vollmer
Journal of Synchrotron Radiation 16, 307 (2009)

High magnetic coercivity in a single atomically thin FePt alloy layer
J. Honolka, T.Y. Lee, K. Kuhnke, A. Enders, R. Skomski, S. Bornemann, S. Mankovsky, J. Minar, J. Staunton, H. Ebert, M. Hessler, K. Fauth, G. Schütz, A. Buchsbaum, M. Schmid, P. Varga and K. Kern
Physical Review Letters 102, 067207 (2009)

Profiling the interface electron gas of LaAlO3/SrTiO3 heterostructures by hard X-ray photoelectron spectroscopy
M. Sing, G. Berner, K. Goß, A. Müller, A. Ruff, A. Wetscherek, S. Thiel, J. Mannhart, S.A. Pauli, C.W. Schneider, P.R. Willmott, M. Gorgoi, F. Schäfers, and R. Claessen
Physical Review Letters 102, 176805 (2009)

Ti oxyhalides: A playground for electron correlation physics
S. Glawion, M. Sing and R. Claessen
Physica B 404, 530 (2009)

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Spatial dependence of the dichroism of photoemission of Fe1/4TiTe2 upon excitation with circularly polarized radiation
Yu.M. Yarmoshenko, T.V. Kuznetsova, A.V. Postnikov, A.N. Titov, S.G. Titova, V.V. Fedorenko, P. Vilmercati, A. Goldoni, and R. Claessen
Physics of the Solid State 50, 2190 (2008)

New model system for a one-dimensional electron liquid: Self-organized atomic gold chains on Ge(001)
J. Schäfer, C. Blumenstein, S. Meyer, M. Wisniewski and R. Claessen
Physical Review Letters 101, 236802 (2008), Editors´ Suggestion

Surface segregation of interstitial manganese in Ga1−xMnxAs studied by hard X-ray photoemission spectroscopy
B. Schmid, A. Müller, M. Sing, R. Claessen, J. Wenisch, K. Brunner, L. Molenkamp, and W. Drube
Physical Review B 78, 075319 (2008)

Mott-Hubbard gap closure and structural phase transition in the oxyhalides TiOBr and TiOCl under pressure
C.A. Kuntscher, A. Pashkin, H. Hoffmann, S. Frank, M. Klemm S. Horn, A. Schönleber, S. van Smaalen, M. Hanfland, S. Glawion, M. Sing and R. Claessen
Physical Review B 78, 035106 (2008)

Atomic nanowires on the Pt/Ge(001) surface: Buried Pt-Ge versus top Pt-Pt chains
A. Stekolnikov, F. Bechstedt, M. Wisniewski, J. Schäfer and R. Claessen
Physical Review Letters 100, 196101 (2008)

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Superparamagnetism in small Fe clusters on Cu(111)
G. Ballentine, M. Heßler, M. Kinza and K. Fauth
European Physical Journal D 45, 535 (2007)

One-pot synthesis of core-shell FeRh nanoparticles
D. Ciuculescu, C. Amiens, M. Respaud, A. Falqui, P. Lecante, R. E. Benfield, L. Jiang, K. Fauth and B. Chaudret
Chemistry of Materials 19, 4624 (2007)

Pressure-induced metallization and structural phase transition of the Mott-Hubbard insulator TiOBr
C.A. Kuntscher, S. Frank, A. Pashkin, H. Hoffmann, A. Schönleber, S. van Smaalen, M. Hanfland, S. Glawion, M. Klemm, M. Sing, S. Horn, and R. Claessen
Physical Review B 76, 241101(R) (2007)

Structural vs. electronic origin of renormalized band widths in TTF-TCNQ: An angular dependent NEXAFS study
M. Sing, J. Meyer, M. Hoinkis, S. Glawion, P. Blaha, G. Gavrila, C. S. Jacobsen, and R. Claessen
Physical Review B 76, 245119 (2007)

Spatially resolved magnetic response in core shell nanoparticles
K. Fauth, E. Goering and L. Theil Kuhn
Modern Physics Letters B 21, 1197 (2007)

Chemical composition of core shell nanoparticles determined with x-ray absorption and magnetic circular dichroism
K. Fauth
Modern Physics Letters B 21, 1179 (2007)

Cluster dynamical mean-field calculations for TiOCl 
T. Saha-Dasgupta, A. Lichtenstein, M. Hoinkis, S. Glawion, M. Sing, R. Claessen and R. Valentí
New Journal of Physics 9, 380 (2007)

Negative refraction observed in a metallic ferromagnet in the Gigahertz frequency range
A. Pimenov, A. Loidl, K. Gehrke, V. Moshnyaga and K. Samwer
Physical Review Letters 98, 197401 (2007)

Thermodynamic stability, atomic and electronic structure of reduced Fe3O4 (111) single crystal surfaces
M. Paul, M. Sing, R. Claessen, D. Schrupp and V.A.M. Brabers
Physical Review B 76, 075412 (2007)

The magnetic moment of Fe in oxide-free FePt nanoparticles
O. Dmitrieva, M. Spasova, C. Antoniak, M. Acet, G. Dumpich, J. Kästner, M. Farle, K. Fauth, U. Wiedwald, H.-G. Boyen
Physical Review B 76, 064414 (2007)

One-dimensional versus two-dimensional correlation effects in the oxyhalides TiOCl and TiOBr
M. Hoinkis, M. Sing, S. Glawion, L. Pisani, R. Valentí, S. van Smaalen, M. Klemm, S. Horn, and R. Claessen
Physical Review B 75, 245124 (2007)

Spin-polarized standing waves at an electronically matched interface detected by Fermi surface photoemission
J. Schäfer, M. Hoinkis, E. Rotenberg, P. Blaha, and R. Claessen
Physical Review B 75, 092401 (2007); also Virtual Journal of Nanoscale Science & Technology 15, 11 (2007)

Lowering of the L10 ordering temperature of FePt nanoparticles by He+ ion irradiation
U. Wiedwald, A. Klimmer, B. Kern, L. Han, H,-G. Boyen, P. Ziemann and K. Fauth
Applied Physics Letters 90, 062508 (2007)

Vortex dynamics in permalloy disks with artificial defects: Suppression of the gyrotropic mode
K. Kuepper, L. Bischoff, Ch. Akhmadaliev, J. Fassbender, H. Stoll, K. W. Chou, A. Puzic, K. Fauth, D. Dolgos, G. Schütz, B. Van Waeyenberge, T. Tyliszczak, I. Neudecker, G. Woltersdorf, C. H. Back
Applied Physics Letters 90, 062506 (2007)

Muon-spin relaxation measurements on the dimerized spin-1/2 chains NaTiSi2O6 and TiOCl
P.J. Baker, S.J. Blundell, F.L. Pratt, T. Lancaster, M.L. Brooks, W. Hayes, M. Isobe, Y. Ueda, M. Hoinkis, M. Sing, M. Klemm, S. Horn, and R. Claessen
Physical Review B 75, 094404 (2007)

A micellar approach to magnetic ultra-high density data storage media – extending the limits of current colloidal methods
A. Ethirajan, U. Wiedwald, H.-G. Boyen, B. Kern, L. Han, A. Klimmer, F. Weigl, G. Kästle, P. Ziemann, K. Fauth, J. Cai, J. Behm, P. Oelhafen, P. Walther, J. Biskupek, U. Kaiser
Advanced Materials 19, 406 (2007)

Photoemission on quasi-one-dimensional solids: Peierls, Luttinger & Co.
R. Claessen, J. Schäfer and M. Sing
In Very High Resolution Photoelectron Spectroscopy, ed. S. Hüfner, 
Lecture Notes in Physics, Vol. 715 (Springer, Berlin, 2007)

Band mapping in one-step photoemission theory: Multi-Bloch wave structure of final states and interference effects
E.E. Krasovskii, V.N. Strocov, N. Barett, H. Berger, W. Schattke, and R. Claessen
Physical Review B 75, 045432 (2007)

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Three-dimensional band structure in layered TiTe2: Photoemission final-state effects
V.N. Strocov, E.E. Krasovskii, W. Schattke, N. Barett, H. Berger, D. Schrupp and R. Claessen
Physical Review B 74, 195125 (2006)

Pressure-induced insulator-to-metal transition in low-dimensional TiOCl
C.A. Kuntscher, S. Frank, A. Pashkin, M. Hoinkis, M. Klemm, M. Sing, S. Horn, and R. Claessen
Physical Review B 74, 184402 (2006)

Enhancement of L10 Phase Formation in FePt Nanoparticles by Nitrogenization
O. Dmitrieva, M. Acet, G. Dumpich, J. Kästner, C. Antoniak, M. Farle and K. Fauth
Journal of Physics D 39, 4741 (2006)

Electronic quasiparticles and evolution of Fermi level spin states in thin magnetic layers
J. Schäfer, M. Hoinkis, D. Schrupp, E. Rotenberg, P. Blaha, and R. Claessen
Surface Science 600, 3912 (2006)

Conduction states with vanishing dimerization in Pt nanowires on Ge(001) observed with scanning tunneling microscopy
J. Schäfer, D. Schrupp, M. Preisinger, and R. Claessen
Physical Review B 74, 041404(R) (2006); also Virtual Journal of Nanoscale Science & Technology 14, 6 (2006)

Enhanced orbital magnetism in Fe50Pt50 nanoparticles
C. Antoniak, J. Lindner, M. Spasova, D. Sudfeld, M. Acet, M. Farle, K. Fauth, U. Wiedwald, H.-G. Boyen, P. Ziemann, F. Wilhelm, A. Rogalev and S. Sun
Physical Review Letters 97, 117201 (2006)

The Hubbard model description of the photoemission TCNQ singular features in TTF-TCNQ
J.M.P. Carmelo, K. Penc, P.D. Sacramento, M. Sing and R. Claessen
Journal of Physics: Condensed Matter 18, 5191 (2006)

Incommensurate structure of the spin-Peierls compound TiOCl
A. Krimmel, J. Strempfer, B. Bohnenbuck, B. Keimer, M. Hoinkis, M. Klemm, S. Horn, A. Loidl, M. Sing, R. Claessen and M. v. Zimmermann
Physical Review B 73, 172413 (2006)

Spin dynamics in the low-dimensional magnet TiOCl
D.V. Zakharov, J. Deisenhofer, H.-A. Krug von Nidda, P. Lunkenheimer, J. Hemberger, M. Hoinkis, M. Klemm, M. Sing, R. Claessen, M.V. Eremin, S. Horn, and A. Loidl
Physical Review B 73, 094452 (2006)

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Electronic structure of the spin-1/2 quantum magnet TiOCl
M. Sing, M. Hoinkis, J. Schäfer, M. Klemm, S. Horn, H. Benthien, E. Jeckelmann, L. Pisani, R. Valentí, and R. Claessen
Journal de Physique IV 131, 331 (2005)

From Colloidal Co/CoO Core-Shell Nanoparticles to Arrays of Metallic Nanomagnets: Surface Modification and Magnetic Properties
U. Wiedwald, K. Fauth, M. Heßler, H.-G. Boyen, F. Weigl, M. Hilgendorff, M. Giersig, G. Schütz, P. Ziemann and M. Farle
ChemPhysChem 6, 2522 (2005)

Electronic structure of the spin-1/2 quantum magnet TiOCl
M. Hoinkis, M. Sing, J. Schäfer, M. Klemm, S. Horn, H. Benthien, E. Jeckelmann, T. Saha-Dasgupta, L. Pisani, R. Valentí, and R. Claessen
Physical Review B 72, 125127 (2005)

Fermi surface and electron correlation effects of ferromagnetic iron
J. Schäfer, M. Hoinkis, E. Rotenberg, P. Blaha, and R. Claessen
Physical Review B 72, 155115 (2005)

GdN thin films: Bulk and local electronic and magnetic properties
F. Leuenberger, A. Parge, W. Felsch, K. Fauth, and M. Hessler
Physical Review B 72, 014427 (2005)

Terahertz conductivity at the Verwey transition in magnetite
A. Pimenov, S. Tachos, T. Rudolf, A. Loidl, D. Schrupp, M. Sing, R. Claessen, and V.A.M. Brabers
Physical Review B 72, 035131 (2005)

Heat capacity of the quantum magnet TiOCl
J. Hemberger, M. Hoinkis, M. Klemm, M. Sing, R. Claessen, S. Horn, and A. Loidl
Physical Review B 72, 012420 (2005)

Identification of extrinsic Mn contributions to the x-ray magnetic circular dichroism of Ga1-xMnxAs
O. Rader, K. Fauth, G. Schott, G. Schmidt, F. Kronast, W. Gudat, G. Schütz and L. Molenkamp
Journal of Electron Spectroscopy and Related Phenomena 144, 789 (2005)

GaSb/GaAs quantum dot systems: In situ synchrotron radiation XPS study
V.N. Strocov, G.E. Cirlin, J. Sadowski, and R. Claessen
Nanotechnology 16, 1326 (2005)

High-energy photoemission on Fe3O4: Small polaron physics and the Verwey transition
D. Schrupp, M. Sing, M.Tsunekawa, H. Fujiwara, S. Kasai, A. Sekiyama, S. Suga, T. Muro, V.A.M. Brabers, and R. Claessen
Europhysics Letters 70, 789 (2005)

Electronic and magnetic properties of ligand-free FePt nanoparticles
H.-G. Boyen, K. Fauth, B. Stahl, M. Heßler, J. Ellrich, G. Kästle, F. Weigl, H. Hahn, F. Banhart, G. Schütz, M. Büttner, M. G. Garnier, P. Oelhafen and P. Ziemann
Advanced Materials 17, 578 (2005)

Electronic interactions and phase transitions at surfaces and in low dimensions
J. Schäfer, D. Schrupp, E. Rotenberg, and R. Claessen
Applied Physics A 80, 965 (2005)

The spin-Peierls transition in TiOCl
M. Shaz, S. van Smaalen, L. Palatinus, M. Hoinkis, M. Klemm, S. Horn, and R. Claessen
Physical Review B 71, 100405(R) (2005)

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