期刊
NEW JOURNAL OF PHYSICS
卷 23, 期 2, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1367-2630/abda56
关键词
Rashba coupling; Dirac semimetal; spin switcher; spintronics; topological semimetals
资金
- MCIU/AEI/FEDER, EU [PGC2018-094180-B-I00]
- MINECO/FEDER, EU [MAT2016-75955, MAT2017-86717-P, PID2019-106820RB-C21]
- CAM/FEDER [S2018/TCS-4342]
- CSIC Research Platform [PTI-001]
- DFG [SBF 1277]
- UA: Matematica Aplicada a la Teoria de la Materia Condensada
- Carlos III University
The study focused on the effect and control of Rashba spin-orbit coupling on the Fermi arcs of topological Dirac semimetals. Analyzing the rotation of surface state spins and the spin-dependent two-terminal conductance reveals the potential for spintronic applications in the presence of disorder.
We study the effect of the Rashba spin-orbit coupling on the Fermi arcs of topological Dirac semimetals. The Rashba coupling is induced by breaking the inversion symmetry at the surface. Remarkably, this coupling could be enhanced by the interaction with the substrate and controlled by an external electric field. We study analytically and numerically the rotation of the spin of the surface states as a function of the electron's momentum and the coupling strength. Furthermore, a detailed analysis of the spin-dependent two-terminal conductance is presented in the clean limit and with the addition of a random distribution of impurities. Depending on the magnitude of the quadratic terms in the Hamiltonian, the spin-flip conductance may become dominant, thus showing the potential of the system for spintronic applications, since the effect is robust even in the presence of disorder.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据