Experimental realization of a non-magnetic one-way spin switch
Abstract
Controlling magnetism through non-magnetic means is highly desirable for future electronic devices, as such means typically have ultra-low power requirements and can provide coherent control. In recent years, great experimental progress has been made in the field of electrical manipulation of magnetism in numerous material systems. These studies generally do not consider the directionality of the applied non-magnetic potentials and/or magnetism switching. Here, we theoretically conceive and experimentally demonstrate a non-magnetic one-way spin switch device using a spin-orbit coupled Bose-Einstein condensate subjected to a moving spin-independent dipole potential. The physical foundation of this unidirectional device is based on the breakdown of Galilean invariance in the presence of spin-orbit coupling. Such a one-way spin switch opens an avenue for designing novel quantum devices with unique functionalities and may facilitate further experimental investigations of other one-way spintronic and atomtronic devices.
Keywords
Cite
@article{arxiv.1902.06321,
title = {Experimental realization of a non-magnetic one-way spin switch},
author = {M. E. Mossman and Junpeng Hou and Xi-Wang Luo and Chuanwei Zhang and P. Engels},
journal= {arXiv preprint arXiv:1902.06321},
year = {2019}
}
Comments
This manuscript was submitted for publication on 11/18/2018. Main text: 6 pages, 5 figures. Supplemental Materials: 5 pages, 5 figures