Majorana states and devices in magnetic structures
Mesoscale and Nanoscale Physics
2015-06-16 v1 Superconductivity
Abstract
The pursuit for Majorana fermions is one of the top priorities in condensed matter physics at the moment. In this work we propose a new method of fabricating Majorana Josephson devices in systems with a weak or no spin-orbit coupling and without external magnetic fields. Our proposal is based on curved semiconductor wires in the proximity of superconducting elements and a small number of nanomagnets. With this method it is possible to fabricate devices that are not feasible by employing straight topological wire segments. The proposed method is naturally scalable and opens up a possibility for a systematic fabrication of arrays of Majorana states where a pair of Majorana states is obtained from a single magnet.
Keywords
Cite
@article{arxiv.1307.5506,
title = {Majorana states and devices in magnetic structures},
author = {Teemu Ojanen},
journal= {arXiv preprint arXiv:1307.5506},
year = {2015}
}
Comments
4.5 pages, 5 Figs