Spin rotator and shot noise in graphene-based multi-barrier nanostructure

被引：0
|
作者：
Q.P. Wu
X.D. He
Z.F. Liu
机构：
[1] Nanchang University,School of materials science and engineering
[2] East China Jiaotong University,School of Basic Science
[3] Nanchang Hangkong University,School of Measuring and Optical Engineering
来源：
The European Physical Journal B | 2012年 / 85卷
关键词：
Solid State and Materials;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on the transfer-matrix method, the spin transport properties through a graphene-based multi-barrier nanostructure with an exchange field and Rashba spin orbit coupling (SOC), have been investigated. It is found that if Rashba SOC equals to the exchange field, the multi-barrier nanostructure is an efficient way to achieve spin rotators and spin filters. In addition, it is also found that the shot noise of a spin state can be enhanced by electrostatic potential, and plateaus of the Fano factor is formed.
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