scholarly journals Gate-voltage-induced switching of the Rashba spin-orbit interaction in a composition-adjusted quantum well

2017 ◽  
Vol 95 (4) ◽  
Author(s):  
Hiroshi Akera ◽  
Hidekatsu Suzuura ◽  
Yoshiyuki Egami
Keyword(s):  
Quantum Well ◽  
Gate Voltage ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin

GATE-CONTROLLED RASHBA SPIN–ORBIT INTERACTION INTENSITY IN SEMICONDUCTOR HETEROSTRUCTURES

2012 ◽  
Vol 26 (30) ◽  
pp. 1230015 ◽  
Author(s):  
SHIU-MING HUANG
Keyword(s):  
Quantum Well ◽  
Carrier Concentration ◽  
Gate Voltage ◽  
Orbit Interaction ◽  
The Other ◽  
Semiconductor Heterostructures ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin ◽  
Interaction Intensity

In order to realize the spin-polarized field-effect-transistor, a controllable spin–orbit interaction is necessary. Two kinds of spin–orbit interaction, Dresselhaus and Rashba spin–orbit interaction, in semiconductor heterostructures have been widely discussed and investigated in terms of both theories and experiments. Dresselhaus and Rashba spin–orbit interaction mainly comes from the lack of inversion symmetry and effective electric field inside the quantum well, respectively. Many experimental investigations show that external voltages affect the carrier concentration of reservoirs, wavefunction distribution in the quantum well and the conduction band profile of the heterostructures. The details of the mechanisms and the efficiency of different effects on the spin–orbit interaction intensity are discussed through different structures and materials. The results show that an increase in carrier concentration or a decrease in gate voltage enhances the Rashba spin–orbit interaction intensity. On the other hand, the wavefunction penetration is the other important mechanism that affects the Rashba spin–orbit interaction intensity. The carrier concentration asymmetry factor strongly affects the efficiency of the external gate voltage on the Rashba spin–orbit interaction intensity.

Polarization-induced Ultrahigh Rashba Spin-orbit Interaction in ZnO/CdO Quantum Well

Nano Energy ◽  
2021 ◽  
pp. 106310
Author(s):  
Mandun Fu ◽  
Minjiang Dan ◽  
Gongwei Hu ◽  
Lijie Li ◽  
Yan Zhang
Keyword(s):  
Quantum Well ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin
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