Spin-current diode with a ferromagnetic semiconductor
Mesoscale and Nanoscale Physics
2015-06-11 v1
Abstract
Diode is a key device in electronics: the charge current can flow through the device under a forward bias, while almost no current flows under a reverse bias. Here we propose a corresponding device in spintronics: the spin-current diode, in which the forward spin current is large but the reversed one is negligible. We show that the lead/ferromagnetic quantum dot/lead system and the lead/ferromagnetic semiconductor/lead junction can work as spin-current diodes. The spin-current diode, a low dissipation device, may have important applications in spintronics, as the conventional charge-current diode does in electronics.
Keywords
Cite
@article{arxiv.1502.03599,
title = {Spin-current diode with a ferromagnetic semiconductor},
author = {Qing-Feng Sun and X. C. Xie},
journal= {arXiv preprint arXiv:1502.03599},
year = {2015}
}
Comments
5 pages, 3 figures