Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2006-06-08
Phys. Rev. B 74, 155316 (2006) (5 pages)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 4 figures
Scientific paper
10.1103/PhysRevB.74.155316
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.
Dzierzawa Michael
Gorini Cosimo
Raimondi Roberto
Schwab Peter
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