Zusammenfassung
A curved two- dimensional electron gas with spin - orbit interactions due to the radial confinement asymmetry is considered. At a certain relation between the spin - orbit coupling strength and curvature radius the tangential component of the electron spin becomes a conserved quantity for any spin-independent scattering potential that leads to a number of interesting effects such as persistent ...
Zusammenfassung
A curved two- dimensional electron gas with spin - orbit interactions due to the radial confinement asymmetry is considered. At a certain relation between the spin - orbit coupling strength and curvature radius the tangential component of the electron spin becomes a conserved quantity for any spin-independent scattering potential that leads to a number of interesting effects such as persistent spin helix and strong anisotropy of spin relaxation times. The effect proposed can be utilized in non- ballistic spin- field- effect transistors.
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