A Spin-Polarized Current Direction Controller Based on a Nonuniform Rashba Quantum Wire
XU Zhong-Hui1,2, XIAO Wen1, CHEN Yu-Guang1**
1Department of Physics, Tongji University, Shanghai 200092 2Faculty of Information Engineering, Jiangxi University of Science and Technology, Ganzhou 341000
Abstract：A spin-polarized current direction controller scheme is proposed based on a nonuniform Rashba quantum wire. It is shown that |PzLR|=|PzRL|, whereas their signs are opposite, and the effect of this phenomenon is due to the two broken symmetries and the unbroken C2-rotation symmetry of the investigated system. In addition, the spin-polarized current is nonzero even with a strong disorder strength, which demonstrates that this structure may be utilized for potential applications.
(Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)
引用本文:
. [J]. 中国物理快报, 2013, 30(5): 57201-057201.
XU Zhong-Hui, XIAO Wen, CHEN Yu-Guang. A Spin-Polarized Current Direction Controller Based on a Nonuniform Rashba Quantum Wire. Chin. Phys. Lett., 2013, 30(5): 57201-057201.
2013, Vol. 30 
