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@INPROCEEDINGS{Rssmann:1024409,
author = {Rüssmann, Philipp},
title = {{I}nterorbital {C}ooper pairing at finite energies in
{R}ashba surface states},
reportid = {FZJ-2024-02152},
year = {2024},
abstract = {Multiband effects in hybrid structures provide a rich
playground for unconventional superconductivity. We combine
two complementary approaches based on density-functional
theory (DFT) [1] and effective low-energy model theory in
order to investigate the proximity effect in a Rashba
surface state in contact with an s-wave superconductor [2].
We discuss these synergistic approaches and combine the
effective model and DFT analysis at the example of a Au/Al
heterostructure. This allows us to predict finite-energy
superconducting pairing due to the interplay of the Rashba
surface state of Au, and hybridization with the electronic
structure of superconducting Al. We investigate the nature
of the induced superconducting pairing, and we quantify its
mixed singlet-triplet character. Our findings demonstrate
general recipes to explore real material systems that
exhibit interorbital pairing away from the Fermi energy.This
work was supported by the Bavarian Ministry of Economic
Affairs, Regional Development and Energy and the ML4Q
Cluster of Excellence (EXC 2004/1 - 390534769).[1] P.
Rüßmann and S. Blügel, Phys. Rev. B 105 (2022) 125143.[2]
P. Rüßmann et al., Phys. Rev. Research 5 (2023) 043181.},
month = {Mar},
date = {2024-03-17},
organization = {Spring meeting of ther German physical
society, Berlin (Germany), 17 Mar 2024
- 22 Mar 2024},
subtyp = {After Call},
cin = {PGI-1},
cid = {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/1024409},
}