Majorana zero modes in ferromagnet-superconductor heterostructures

Chien-Te Wu; Shao-Hung Huang

doi:10.1117/12.2594311

1 August 2021 Majorana zero modes in ferromagnet-superconductor heterostructures

Chien-Te Wu, Shao-Hung Huang

Proceedings Volume 11805, Spintronics XIV; 118050C (2021) https://doi.org/10.1117/12.2594311
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

In this work, we focus on the emergence of Majorana zero modes in heterostructures composed of superconducting and ferromagnetic materials. We numerically determine self-consistent solutions to the Bogoliubov-de Gennes equations suitable for our system. For the first part, we consider a conventional superconductor sandwiched by two conical ferromagnets. We vary the direction of the conical axes and the strength of Zeeman field for both ferromagnetic regions to study the stability of the topological properties of our system. For the second part, we turn our attention to a trilayer consisting of two superconductors and a conical ferromagnet in the geometry of a conventional Josephson junction. By choosing appropriate parameters, the Josephson junction can also host Majorana zero modes and exhibit topological signatures.

Conference Presentation

Citation Download Citation

Chien-Te Wu and Shao-Hung Huang "Majorana zero modes in ferromagnet-superconductor heterostructures", Proc. SPIE 11805, Spintronics XIV, 118050C (1 August 2021); https://doi.org/10.1117/12.2594311

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