Spin-orbit interaction induced anisotropic property in interacting quantum wires
1 Department of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410076, China
2 SKLSM, Institute of Semiconductors, Chinese Academy of Sciences, P. O. Box 912, Beijing 100083, China
3 Key Laboratory (Educational Ministry) for Low-Dimensional Structures and Quantum Manipulation, Hunan Normal University, Changsha 410081, China
Nanoscale Research Letters 2011, 6:213 doi:10.1186/1556-276X-6-213Published: 11 March 2011
We investigate theoretically the ground state and transport property of electrons in interacting quantum wires (QWs) oriented along different crystallographic directions in (001) and (110) planes in the presence of the Rashba spin-orbit interaction (RSOI) and Dresselhaus SOI (DSOI). The electron ground state can cross over different phases, e.g., spin density wave, charge density wave, singlet superconductivity, and metamagnetism, by changing the strengths of the SOIs and the crystallographic orientation of the QW. The interplay between the SOIs and Coulomb interaction leads to the anisotropic dc transport property of QW which provides us a possible way to detect the strengths of the RSOI and DSOI.
PACS numbers: 73.63.Nm, 71.10.Pm, 73.23.-b, 71.70.Ej