Electron transport of a quantum wire with spatially periodic spin–orbit coupling |
| |
Authors: | XB Xiao XM Li YG Chen |
| |
Institution: | aDepartment of Physics, Tongji University, Shanghai 200092, China;bCollege of Science, Jiangxi Agricultural University, Nanchang 330045, China |
| |
Abstract: | Electron transport properties of an ideal one-dimensional (1D) quantum wire are studied including spatially periodic Rashba spin–orbit coupling (SOC) and Dresselhaus SOC. By comparing with the previous work S.J. Gong, Z.Q. Yang, J. Phys. Condens. Matter 19 (2007) 446209], two transmission gaps appear in the transmission probability of electrons and their widths are also broadened dramatically. Moreover, it is found that their widths are sensitive not only to the strength of SOCs but also to the length ratio of SOCs segment and non-SOCs segment. In addition, a ‘circle-type’ transmission behavior has been found by tuning the strength of SOCs continuously. Our results may extend the previous work and provide an more effective method to manipulate the current in nanoelectric devices. |
| |
Keywords: | Electron transport Quantum wire Spin– orbit coupling |
本文献已被 ScienceDirect 等数据库收录! |
|