Spin–Orbit Coupling-Determined Topological Phase: Topological Insulator and Quadratic Dirac Semimetals

2020 ◽  
Vol 11 (24) ◽  
pp. 10340-10347
Author(s):  
Lu Tian ◽  
Ying Liu ◽  
Weizhen Meng ◽  
Xiaoming Zhang ◽  
Xuefang Dai ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Topological Phase ◽  
Spin Orbit ◽  
Dirac Semimetals

Bi2Se3 topological insulator at the 2D-limit: role of halide-doping on Dirac point

2018 ◽  
Vol 20 (26) ◽  
pp. 17934-17941 ◽  
Author(s):  
Salma Khatun ◽  
Hrishikesh Bhunia ◽  
Amlan J. Pal
Keyword(s):  
Topological Insulator ◽  
Dirac Point ◽  
Coupling Parameter ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit

The Dirac point of 2D Bi2Se3 could be tuned by halogen substitution due to a change in the spin–orbit coupling parameter.

scholarly journals Irreversible Thermodynamics at Surfaces: Inverse Edelstein Effect for Topological Insulator

2021 ◽  
Author(s):  
Wayne M. Saslow
Keyword(s):  
Topological Insulator ◽  
Three Dimensional ◽  
Irreversible Thermodynamics ◽  
Orbit Coupling ◽  
Spin Accumulation ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Charge Current ◽  
Flux Incident ◽  
Strong Spin

We employ Onsager’s irreversible thermodynamics (IrTh) to study the Inverse Edelstein effect (IEE) for a non-magnetic material (NM) adjacent to a topological insulator (TI) with a strong spin-orbit interaction. The TI surface state region is treated as quasi two-dimensional (2d). For the IEE, the source is a 3d spin flux incident from the NM that converts, at the NM/TI interface, to a quasi-2d charge current in the TI. For the Edelstein Effect (EE), the source is a quasi-2d charge flux incident from the TI that converts, at the interface, to a three-dimensional (3d) spin flux in the NM. For strong spin-orbit coupling, as considered here, when the 3d spin flux crosses to the 2d TI, the quasi-2d charge current is produced along with a quasi-2d spin accumulation. (For weak spin-orbit coupling, production of charge current and of spin accumulation are distinct processes.) We compute the associated rates of heating.

Sign in / Sign up

Export Citation Format

Share Document