Persistent spin helix in Rashba-Dresselhaus two-dimensional electron systems

Simple item page
dc.creatorLiu, Ming-Hao
dc.creatorChen, Kuo-Wei
dc.creatorChen, Son-Hsien
dc.creatorChang, Ching-Ray
dc.date2006-08-03
dc.date2006-12-21
dc.date.accessioned2026-07-07T07:36:31Z
dc.date.available2026-07-07T07:36:31Z
dc.descriptionA persistent spin helix (PSH) in spin-orbit-coupled two-dimensional electron systems was recently predicted to exist in two cases: [001] quantum wells (QWs) with equal coupling strengths of the Rashba and the Dresselhaus interactions (RD), and Dresselhaus-only [110] QWs. Here we present supporting results and further investigations, using our previous results [Phys. Rev. B 72, 153305 (2005)]. Refined PSH patterns for both RD [001] and Dresselhaus [110] QWs are shown, such that the feature of the helix is clearly seen. We also discuss the time dependence of spin to reexamine the origin of the predicted persistence of the PSH. For the RD [001] case, we further take into account the random Rashba effect, which is much more realistic than the constant Rashba model. The distorted PSH pattern thus obtained suggests that such a PSH may be more observable in the Dresselhaus [110] QWs, if the dopants cannot be regularly enough distributed.
dc.description6 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0608077
dc.identifierhttp://arxiv.org/abs/cond-mat/0608077
dc.identifierPhys. Rev. B 74, 235322 (2006)
dc.identifierdoi:10.1103/PhysRevB.74.235322
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/120452
dc.subjectMesoscale and Nanoscale Physics
dc.subjectOther Condensed Matter
dc.titlePersistent spin helix in Rashba-Dresselhaus two-dimensional electron systems
dc.typetext

Files

Collections

arXiv