Majorana Zero Modes in a Heterogenous Structure of Topological and Trivial Domains in FeSe_1-xTe_x

2025/05/21 by Prashant Gupta, Gupta, Prashant, Jasmin Bedow +5
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Iron-based superconductors research #Magnetic Properties of Alloys #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Rare-earth and actinide compounds #Superconductivity (cond-mat.supr-con)

paper · pdf · doi:10.48550/arxiv.2505.15745

openalex publication_date 2025/05/21 · openalex created_date 2025/10/19 · openalex updated_date 2026/07/28

Abstract

We propose that the existence of vortices in FeSe_1-xTe_x with and without Majoarana zero modes (MZMs) can be explained by a heterogeneous mixture of strong topological and trivial superconducting domains, with only vortices in the former exhibiting MZMs. We identify the spectroscopic signatures of topological and trivial vortices and show that they are necessarily separated by a domain wall harboring Majorana edge modes. We demonstrate that when a vortex is moved from a trivial to a topological domain in real time, a domain wall Majorana edge mode is transferred to the vortex as an MZM.

Citations

• Braiding of Majorana Zero Modes in Vortex Cores
• Finding Hidden Numbers with Majorana-based Topological Quantum Algorithms: Simulation of the Bernstein-Vazirani Algorithm
• Topology meets time-reversal symmetry breaking in FeSe_1-xTe_x superconductor
• Emergence and Manipulation of non-equilibrium Yu-Shiba-Rusinov states

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