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@MISC{Rssmann:1008877,
author = {Rüssmann, Philipp and Blügel, Stefan},
title = {{D}ensity functional {B}ogoliubov-de {G}ennes analysis of
superconducting {N}b and {N}b(110) surfaces},
volume = {2021.163},
publisher = {Materials Cloud},
reportid = {FZJ-2023-02521},
year = {2021},
abstract = {Material-specific calculations based on density functional
theory play a major role in understanding and designing the
properties of quantum matter. In the field of topological
quantum computing there is an intense search for material
systems that have the ability to realize Majorana zero
modes. The ability to combine the accurate electronic
structure, that is accessible from density functional
theory, with superconductivity can help gaining
material-specific insights and may contribute to the
understanding and realization of Majorana zero modes in
solid state systems. In this work we report on our
implementation of the Bogoliubov-de Gennes method into the
JuKKR code [https://jukkr.fz-juelich.de], an implementation
of the all-electron, full-potential Korringa-Kohn-Rostoker
Green function method, which allows a material-specific
description of inhomogeneous superconductors and
heterostructures on the basis of density functional theory.
We describe the formalism and report on calculations for the
s-wave superconductor Nb. We compare the properties of the
superconducting state both in the bulk and for (110) thin
films of different thickness. We comment on the importance
of spin-orbit coupling, the effect of surface relaxations
and the influence of a softening of phonon modes on the
surface for the resulting superconducting gap.This dataset
contains the Fleur and KKR calculations that were done in
this study using the AiiDA-Fleur and AiiDA-KKR plugins and a
tutorial that introduces the practical use of AiiDA-KKR for
BdG calculations.},
keywords = {density functional theory (Other) / Superconductivity
(Other) / Bogoliubov-de Gennes (Other) / JuKKR (Other) /
AiiDA-KKR (Other) / Nb (Other) / Surface (Other)},
cin = {PGI-1 / IAS-1 / JARA-HPC / JARA-FIT},
cid = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406 /
$I:(DE-82)080012_20140620$ / $I:(DE-82)080009_20140620$},
pnm = {5211 - Topological Matter (POF4-521) / EXC 2004: Matter
and Light for Quantum Computing (ML4Q) (390534769)},
pid = {G:(DE-HGF)POF4-5211 / G:(BMBF)390534769},
typ = {PUB:(DE-HGF)32},
doi = {10.24435/MATERIALSCLOUD:9B-FV},
url = {https://juser.fz-juelich.de/record/1008877},
}