Conference Presentation (After Call)

FZJ-2024-02149

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Superconducting transition metal dichalcogenites for TI-based topological superconducting devices

Rüssmann, P. (Corresponding author)FZJ*

2024

Abstract: Proximitized topological insulators (TIs) are promising materials to build topological superconductors with the promise to realise Majorana-zero modes and topologically protected quantum devices. Here, we present an overview over our recent computational studies of heterostructures between superconducting transition-metal dichalcogenites (TMDCs) and TIs [1,2]. We compare different TMDC/TI interfaces and analyze the influence of the TMDCs on charge doping, band alignment and the superconducting proximity effect in the TI.In our work we employ Kohn-Sham Bogoliubov-de Gennes simulations for the superconducting electronic structure based on density functional theory which is implemented in the full-potential relativistic Korringa-Kohn-Rostoker Green function method [3,4].[1] Xian-Kui Wei et al., arXiv 2311.16590 (2023)[2] Abdur Rehman Jalil et al., in preparation (2023)[3] P Rüßmann and S Blügel, PRB 105, 125143 (2022).[4] JuDFTteam/JuKKR (2022). doi: 10.5281/zenodo.7284738

---

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

---