Spin relaxation in narrow wires of a two-dimensional electron gas

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How does an initially homogeneous spin-polarization in a confined two-dimensional electron gas with Rashba spin-orbit coupling evolve in time? How does the relaxation time depend on system size? We study these questions for systems of a size that is much larger than the Fermi wavelength, but comparable and even shorter than the spin relaxation length. Depending on the confinement spin-relaxation may become faster or slower than in the bulk. An initially homogeneously polarized spin system evolves into a spiral pattern.
5 pages, 4 figures

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/112104

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0606209
 http://arxiv.org/abs/cond-mat/0606209
 Phys. Rev. B 74, 155316 (2006) (5 pages)
 doi:10.1103/PhysRevB.74.155316

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arXiv