Spin current and rectification in one-dimensional electronic systems
介观与纳米尺度物理
2009-11-11 v2 强关联电子
摘要
Spin and charge currents can be generated by an ac voltage through a one-channel quantum wire with strong electron interactions in a static uniform magnetic field. In a certain range of low voltages, the spin current can grow as a negative power of the voltage bias as the voltage decreases. The spin current expressed in units of hbar/2 per second can become much larger than the charge current in units of the electron charge per second. The system requires neither spin-polarized particle injection nor time-dependent magnetic fields.
引用
@article{arxiv.cond-mat/0610847,
title = {Spin current and rectification in one-dimensional electronic systems},
author = {Bernd Braunecker and D. E. Feldman},
journal= {arXiv preprint arXiv:cond-mat/0610847},
year = {2009}
}
备注
5 pages, 2 figures