TY  - CONF
AU  - Rüssmann, Philipp
AU  - Antognini Silva, David
AU  - Hemmati, Mohammad
AU  - Klepetsanis, Ilias
AU  - Trauzettel, Björn
AU  - Mavropoulos, Phivos
AU  - Blügel, Stefan
TI  - Density-functional description of materials for topological qubits and superconducting spintronics
M1  - FZJ-2024-00101
PY  - 2023
AB  - Interfacing superconductors with magnetic or topological materials offers a playground where novel phenomena like topological superconductivity, Majorana zero modes, or superconducting spintronics are emerging [1]. In this work, we discuss recent developments in the Kohn-Sham Bogoliubov-de Gennes method, which allows to perform material-specific simulations of complex superconducting heterostructures on the basis of density functional theory [2]. As a model system we study magnetically-doped Pb [3]. In our analysis we focus on the interplay of magnetism and superconductivity. This combination leads to Yu-Shiba-Rusinov (YSR) in-gap bound states at magnetic defects and the breakdown of superconductivity at larger impurity concentrations. Moreover, the influence of spin-orbit coupling and on orbital splitting of YSR states as well as the appearance of a triplet component in the order parameter is discussed. These effects can be exploited in S/F/S-type devices (S=superconductor, F=ferromagnet) in the field of superconducting spintronics [1].---[1] R. Cai, I. Zutic, and W. Han, “Superconductor/Ferromagnet Heterostructures: A Platform for Supercon-ducting Spintronics and Quantum Computation,” Advanced Quantum Technologies 6(1), 2200080 (2023).[2] P. Rüßmann, and S. Blügel, “Density functional Bogoliubov-de Gennes analysis of superconducting Nb and Nb(110) surfaces”, Phys. Rev. B 105, 125143 (2022).[3] P. Rüßmann, D. Antognini Silva, M. Hemmati, I. Klepetsanis, B.Trauzettel, P. Mavropoulos, and S. Blügel, “Density-functional description of materials for topological qubits and superconducting spintronics”, arXiv:2308.07383 (2023).
T2  - ML4Q Annual Conference 2023
CY  - 13 Sep 2023 - 15 Sep 2023, Königswinter (Germany)
Y2  - 13 Sep 2023 - 15 Sep 2023
M2  - Königswinter, Germany
LB  - PUB:(DE-HGF)24
UR  - https://juser.fz-juelich.de/record/1020368
ER  -