Stable Majorana Zero-Energy Modes in Two-Dimensional Josephson Junctions

Autor:	Yuting Huang, Qinyi Wang, Lei Li, Zhenying Wen
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	Majorana zero-energy mode Josephson junction band structures symmetry breaking Mathematics QA1-939
Zdroj:	Symmetry, Vol 16, Iss 8, p 1066 (2024)
Druh dokumentu:	article
ISSN:	2073-8994
DOI:	10.3390/sym16081066
Popis:	In this paper, a modified Josephson junction model is proposed, which splits the two-dimensional electron gas by inserting a middle superconductor strip into a conventional Josephson junction. This modification enhances the superconducting proximity effect, thus avoiding the appearance of a soft gap and inducing a stable Majorana zero-energy mode. Through numerical simulation, the impact of the middle superconductor strip with different widths on the energy band structure is studied, and a significant increase in the topological energy gap is found. In addition, the modified system maintains a robust topological gap even at a strong in-plane magnetic field.
Databáze:	Directory of Open Access Journals
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