Liu, Ming-Hao and Chen, Kuo-Wei and Chen, Son-Hsien and Chang, Ching-Ray
Persistent spin helix in Rashba-Dresselhaus two-dimensional electron systems.
Physical Review B (PRB) 74 (23), p. 235322.
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A persistent spin helix (PSH) in spin-orbit-coupled two-dimensional electron systems was recently predicted to exist in two cases:  quantum wells (QWs) with equal coupling strengths of the Rashba and the Dresselhaus interactions (RD), and Dresselhaus-only  QWs. Here we present supporting results and further investigations, using our previous results [Phys. Rev. B 72, 153305 (2005)]. ...
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