scholarly journals EFFECT OF INTERSUBBAND IMPURITY SCATTERING IN TWO DIMENSIONAL DISORDERED ELECTRON SYSTEMS

1993 ◽  
Vol 42 (1) ◽  
pp. 106
Author(s):  
YANG YONG-HONG ◽  
XING DING-YU ◽  
GONG CHANG-DE
Keyword(s):  
Impurity Scattering ◽  
Two Dimensional ◽  
Electron Systems ◽  
Disordered Electron Systems

scholarly journals FIELD-INDUCED SPIN EXCITATIONS IN RASHBA-DRESSELHAUS TWO-DIMENSIONAL ELECTRON SYSTEMS PROBED BY SURFACE ACOUSTIC WAVES

2009 ◽  
Vol 23 (18) ◽  
pp. 3717-3728
Author(s):  
P. KLEINERT ◽  
V. V. BRYKSIN
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Impurity Scattering ◽  
Coupled System ◽  
Spin Excitation ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Out Of Plane ◽  
Two Dimensional Electron Systems

A spin-rotation symmetry in spin-orbit coupled two-dimensional electron systems gives rise to a long-lived spin excitation that is robust against short-range impurity scattering. The influence of a constant in-plane electric field on this persistent spin helix is studied. To probe the field-induced eigen-modes of the spin-charge coupled system, a surface acoustic wave is exploited that provides the wave-vector for resonant excitation. The approach takes advantage of methods worked out in the field of space-charge waves. Sharp resonances in the field dependence of the in-plane and out-of-plane magnetization are identified.

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