scholarly journals Suppression of the D’yakonov-Perel’ spin-relaxation mechanism for all spin components in [111] zincblende quantum wells

2005 ◽  
Vol 71 (4) ◽  
Author(s):  
X. Cartoixà ◽  
D. Z.-Y. Ting ◽  
Y.-C. Chang
Keyword(s):  
Quantum Wells ◽  
Spin Relaxation ◽  
Relaxation Mechanism

Studies on Electron Spin Relaxation in AlGaAs/GaAs Multi Quantum Wells

2011 ◽  
Vol 143-144 ◽  
pp. 216-219
Author(s):  
Yu Wu
Keyword(s):  
Quantum Wells ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Carrier Density ◽  
Relaxation Mechanism ◽  
Electron Spin Polarization ◽  
Time Resolved ◽  
Pump Probe ◽  
Electron Spin Relaxation ◽  
Probe Spectroscopy

Time-resolved circularly polarized pump-probe spectroscopy is used to study the carrier density dependence of the electron spin polarization dynamics in AlGaAs/GaAs multi quantum wells at room temperature. Experimental results show that the spin relaxation time increases with the carrier density, which is in conformity with D'yakonov-Perel relaxation mechanism.

Electron Spin Relaxation in Semiconductor Quantum Wells

2012 ◽  
Vol 424-425 ◽  
pp. 155-158
Author(s):  
Yu Wu ◽  
Qian Shou
Keyword(s):  
Relaxation Time ◽  
Quantum Wells ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Carrier Density ◽  
Relaxation Mechanism ◽  
Spin Relaxation Time ◽  
Multiple Quantum ◽  
Pump Probe ◽  
Electron Spin Relaxation

The dependence of electron spin relaxation on the carrier density are investigated based on the D’yakonov-Perel relaxation mechanism. Experimental results obtained by using femtosecond pump-probe technique in AlGaAs/GaAs multiple quantum wells at room temperature show that the spin relaxation time increases from 58 to 82ps at carrier density of 1×1017 to 1×1018cm－3 consistent with the theoretical prediction. This result reveals that with the increment of the carrier density, the spin orbit interaction reduces due to the more frequent momentum scattering and the spin relaxation time prolongs

Control of the electron spin relaxation by the built-in piezoelectric field in InGaAs quantum wells

2016 ◽  
Vol 108 (8) ◽  
pp. 082103 ◽  
Author(s):  
S. Azaizia ◽  
A. Balocchi ◽  
H. Carrère ◽  
P. Renucci ◽  
T. Amand ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Piezoelectric Field

scholarly journals Large anisotropic spin relaxation time of exciton bound to donor states in triple quantum wells

2017 ◽  
Vol 121 (20) ◽  
pp. 205703 ◽  
Author(s):  
S. Ullah ◽  
G. M. Gusev ◽  
A. K. Bakarov ◽  
F. G. G. Hernandez
Keyword(s):  
Relaxation Time ◽  
Quantum Wells ◽  
Spin Relaxation ◽  
Spin Relaxation Time ◽  
Donor States

Tuning of the Electron Spin Relaxation Anisotropy via Optical Gating in GaAs/AlGaAs Quantum Wells

2016 ◽  
Vol 33 (10) ◽  
pp. 107802
Author(s):  
Bing-Hui Niu ◽  
Teng-Fei Yan ◽  
Hai-Qiao Ni ◽  
Zhi-Chuan Niu ◽  
Xin-Hui Zhang
Keyword(s):  
Quantum Wells ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Optical Gating
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