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MA: Fachverband Magnetismus

MA 20: PhD Focus Session: Symposium on SStrange Bedfellows – Magnetism Meets Superconductivity" (joint session MA/AKjDPG)

MA 20.6: Vortrag

Dienstag, 17. März 2020, 11:45–12:00, HSZ 04

Interplay of Shiba and Majorana states in nanostructures deposited on superconducting surfaces — •Uriel A. Aceves-Rodriguez, Filipe S. M. Guimarães, and Samir Lounis — Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, 52425 Jülich, Germany

Majorana Bound States (MBS) are zero-energy modes that have become one of the leading candidates for the next generation of qubits, due to their topological protection and exchange statistics [1]. In pursuance of handling these entities, we implemented a multi-orbital tight-binding scheme, offering a realistic description of the electronic structure, to solve the Bogoliubov-de Gennes equations self-consistently. We investigate in-gap states, such as Shiba states, emerging from various nanostructures on typical superconducting substrates. Additionally, we examine the occurrence of MBS at superconducting/non-superconducting interfaces of nanowires deposited on superconducting surfaces.

This work was supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (ERC-consolidator Grant No. 681405-DYNASORE).

[1] J. Alicea, Rep. Prog. Phys. 75 (2012) 076501