Stabilization and control of Majorana bound states with elongated skyrmions

Authors

Utkan Güngördü, University of Nebraska-LincolnFollow
Shane Sandhoefner, University of Nebraska - LincolnFollow
Alexey Kovalev, University of Nebraska - LncolnFollow

Document Type

Article

Date of this Version

2018

Citation

PHYSICAL REVIEW B 97, 115136 (2018)

DOI: 10.1103/PhysRevB.97.115136

Comments

©2018 American Physical Society. Used by permission.

Abstract

We show that elongated magnetic skyrmions can host Majorana bound states in a proximity-coupled two-dimensional electron gas sandwiched between a chiral magnet and an s-wave superconductor. Our proposal requires stable skyrmions with unit topological charge, which can be realized in a wide range of multilayer magnets, and it allows quantum information transfer by using standard methods in spintronics via skyrmion motion. We also show how braiding operations can be realized in our proposal.