,Spin transport in a chain of polygonal quantum rings with Dresselhaus spin-orbit coupling

• 作 者: Han-Zhao Tang Xiao-Teng Yao Jian-Jun Liu
• 机 构: Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, China“,”
• 出 处: 中国物理B（英文版）
• 发表日期: 2017年11期
• 关键词: quantum ring chain Dresselhaus spin-orbit coupling spin transport

Using a transfer matrix method,we investigate spin transport through a chain of polygonal rings with Dresselhaus spin-orbit coupling (DSOC).The spin conductance is dependent on the number of sides in the polygons.When DSOC is considered in a chain which also has Rashba spin-orbit coupling (RSOC) of the same magnitude,the total conductance is the same as that for the same chain with no SOC.However,when the two types of SOC have different values,there results a unique anisotropic conductance.