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@INPROCEEDINGS{AntogniniSilva:1020445,
author = {Antognini Silva, David},
collaboration = {Rüssmann, Philipp and Blügel, Stefan},
title = {{Y}u-{S}hiba-{R}usinov impurity bound states in
superconductors from first principles},
reportid = {FZJ-2024-00165},
year = {2023},
abstract = {Materials that combine magnetism, spin-orbit interaction
and conventional s-wave superconductivity are a suitable
platform to study Majorana zero modes (MZM) [1], that can be
used as building blocks of fault-tolerant topological
qubits. In general, magnetic impurities in superconductors
leads to localized Yu-Shiba-Rusinov (YSR) states at the
impurity [2]. Understanding their interplay with MZMs is
crucial to achieve topological quantum computers in the
future.In our work, we implemented the Bogoliubov-de Gennes
(BdG) formalism in the juKKR Korringa-Kohn-Rostoker Green
function impurity code
(https://iffgit.fz-juelich.de/kkr/jukkr) to allow the
material-specific description of defects perfectly embedded
in superconductors from first principles. We apply it to an
Fe impurity embedded in bulk Pb in the normal and
superconducting state, then analyse the YSR states of
different magnetic transition-metal adatoms placed on a
superconducting Nb(110) surface where the influence of the
impurity-substrate distance on the energy of the YSR states
is discussed.[1] Nadj-Perge et al., Science 346, 6209
(2014)[2] L. Yu, Acta Physica Sinica 21, 75 (1965), H.
Shiba, Prog. Theor. Phys. 40, 435 (1968) A. I. Rusinov, Sov.
J. Exp. Theor. Phys. 29, 1101 (1969)},
month = {Mar},
date = {2023-03-27},
organization = {DPG Spring Meeting "SKM 2023", Dresden
(Germany), 27 Mar 2023 - 31 Mar 2023},
subtyp = {Other},
cin = {IAS-1 / PGI-1},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
pnm = {5211 - Topological Matter (POF4-521) / DFG project
390534769 - EXC 2004: Materie und Licht für
Quanteninformation (ML4Q) (390534769)},
pid = {G:(DE-HGF)POF4-5211 / G:(GEPRIS)390534769},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/1020445},
}