This title appears in the Scientific Report :
2023
Density-functional description of materials for topological qubits and superconducting spintronics
Density-functional description of materials for topological qubits and superconducting spintronics
Interfacing superconductors with magnetic or topological materials offers a playground where novel phenomena like topological superconductivity, Majorana zero modes, or superconducting spintronics are emerging. In this work, we discuss recent developments in the Kohn-Sham Bogoliubov-de Gennes method...
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Personal Name(s): | Rüssmann, Philipp (Corresponding author) |
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Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 Quanten-Theorie der Materialien; PGI-1 |
Imprint: |
2023
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Conference: | SPIE Nanoscience + Engineering, San Diego, California (United States), 2023-08-20 - 2023-08-25 |
Document Type: |
Conference Presentation |
Research Program: |
EXC 2004: Materie und Licht für Quanteninformation (ML4Q) Topological Matter |
Publikationsportal JuSER |
Interfacing superconductors with magnetic or topological materials offers a playground where novel phenomena like topological superconductivity, Majorana zero modes, or superconducting spintronics are emerging. 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. As a model system we study magnetically-doped Pb. 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. |