Conference Presentation (After Call)

FZJ-2024-02154

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ab-initio investigation of Yu-Shiba-Rusinov states of 3d adatoms interacting with Rashba-split surface states

Klepetsanis, I. (Corresponding author)FZJ* ; Rüssmann, P.FZJ* ; Wiebe, J. ; Lounis, S.FZJ*

2024

Abstract: The interplay between magnetism and superconductivity has long been under the scope of condensed matter physics research, as two seemingly competing phenomena of order. Here, we employ the Bogoliubov-de-Gennes full-potential relativistic Korringa-Kohn-Rostoker Green function method [1] to study Yu-Shiba-Rusinov states emerging when 3d magnetic adatoms are interfaced with different spacers deposited on Nb surfaces. These spacers are heavily investigated to introduce Rashba surface states and engineer the strength of spin-orbit coupling at the vicinity of a superconductor, which leads to unconventional superconducting pairing [2]. In particular, we explored the cases of (111) films of Cu, Ag, Au as well as BiAg2/Ag and BiCu2/Cu.We acknowledge funding by the DFG (SPP 2244; LO 1659/7-1; ML4Q Cluster of Excellence EXC 2004/1 – 390534769).[1] P. Rüßmann, S. Blügel, Phys. Rev. B 105 (2022) 125143[2] P. Rüßmann et al., Phys. Rev. Research 5 (2023) 043181

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)
2. DFG project 390534769 - EXC 2004: Materie und Licht für Quanteninformation (ML4Q) (390534769) (390534769)

Appears in the scientific report 2024

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