Samarium hexaboride is a trivial surface conductor

Autor: P. Hlawenka, K. Siemensmeyer, E. Weschke, A. Varykhalov, J. Sánchez-Barriga, N. Y. Shitsevalova, A. V. Dukhnenko, V. B. Filipov, S. Gabáni, K. Flachbart, O. Rader, E. D. L. Rienks

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)

Samarium hexahoride is argued to be a topological Kondo insulator, but this claim remains under debate. Here, Hlawenka et al. provide a topologically trivial explanation for the conducting states at the (100) surface of samarium hexaboride; an explan

Externí odkaz: https://doaj.org/article/f28f822dd1b94bb882e54e1328f0a9f8

Lifetime of quasiparticles in the nearly free electron metal sodium

Autor: D. V. Potorochin, R. Kurleto, O. J. Clark, E. D. L. Rienks, J. Sánchez-Barriga, F. Roth, V. Voroshnin, A. Fedorov, W. Eberhardt, B. Büchner, J. Fink

Publikováno v: Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Physical review / B 106(12), 125138 (2022). doi:10.1103/PhysRevB.106.125138

Physical review / B 106(12), 125138 (2022). doi:10.1103/PhysRevB.106.125138
We report a high-resolution angle-resolved photoemission (ARPES) study of the prototypical nearly free-electron metal sodium. The observed mass enhancement is slightly s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd3e35930a59bc0df11bf65167263e7c
https://doi.org/10.1103/physrevb.106.125138

From hidden order to antiferromagnetism: Electronic structure changes in Fe-doped URu 2 Si 2

Autor: J. Dai, Sheng Ran, P. Lejay, E. D. L. Rienks, Noravee Kanchanavatee, M. Brian Maple, M. Güttler, E. Frantzeskakis, Christian Wolowiec, Kevin Huang, T. C. Rödel, F. Fortuna, Naveen Pouse, Cédric Bareille, Andrés F. Santander-Syro

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2021, 118 (27), pp.e2020750118. ⟨10.1073/pnas.2020750118⟩

In matter, any spontaneous symmetry breaking induces a phase transition characterized by an order parameter, such as the magnetization vector in ferromagnets, or a macroscopic many-electron wave-function in superconductors. Phase transitions with unk

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75541b4c36f11a9ea24bad097d6d6afa
https://doi.org/10.1073/pnas.2020750118

Magnetization relaxation and search for the magnetic gap in bulk insulating V doped Bi,Sb 2Te3

Autor: E. D. L. Rienks, P. S. Mandal, Oliver Rader, E. Golias, Nitin Samarth, Florin Radu, Andrei Varykhalov, Jaime Sánchez-Barriga, Eugen Weschke, Enrico Schierle, A. Richardella, Thomas Flanagan

V-doped (Bi,Sb)$_2$Te$_3$ has a ten times higher magnetic coercivity than its Cr-doped counterpart and therefore is believed to be a superior system for the quantum anomalous Hall effect (QAHE). The QAHE requires the opening of a magnetic band gap at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ed98ca402e9ae58babf4203b3c3dc4a
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=104220

Absence of a giant Rashba effect in the valence band of lead halide perovskites

Autor: Dmitry Marchenko, Oliver Rader, Andrei Varykhalov, M. Krivenkov, Jaime Sánchez-Barriga, E. D. L. Rienks, Maryam Sajedi

For hybrid organic-inorganic as well as all-inorganic lead halide perovskites a Rashba effect has been invoked to explain the high efficiency in energy conversion by prohibiting direct recombination. Both a bulk and surface Rashba effect have been pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b8b96df3e5769ffcc7b73383155edca
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/59831