Vortex spin-valve on a topological insulator
Superconductivity
2018-10-10 v1
Abstract
Spin-valve structures are usually associated with the ability to modify the resistance of electrical currents. We here demonstrate a profoundly different effect of a spin-valve. In combination with a topological insulator and superconducting materials, we show that a spin-valve can be used to toggle quantum vortices in and out of existence. In the antiparallel configuration, the spin-valve causes superconducting vortex nucleation. In the parallel configuration, however, no vortices appear. This switching effect suggests a new way to control quantum vortices.
Cite
@article{arxiv.1806.05184,
title = {Vortex spin-valve on a topological insulator},
author = {Morten Amundsen and Henning G. Hugdal and Asle Sudbø and Jacob Linder},
journal= {arXiv preprint arXiv:1806.05184},
year = {2018}
}
Comments
4 pages, 4 figures