Photon-induced spin transport in two-dimensional electron systems
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
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Photon-induced spin transport in two-dimensional electron systems
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| Creator |
Korostil, А.
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| Description |
We study spin-dependent transport in a two-dimensional electron gas subject to an external step-like potential V(x) and irradiated by an electromagnetic field (EF). In the absence of EF the electronic spectrum splits into spin sub-bands originating from the "Rashba" spin-orbit coupling. We show that the resonant interaction of propagating electrons with the component EF parallel to the barrier induces a nonequilibrium dynamic gap (2ΔR ) between the spin sub-bands. Existence of this gap results in coherent spin-flip processes that lead to a spin-polarized current and a large magnetoresistance, i.e. the spin valve effect. These effects may be used for controlling spin transport in semiconducting nanostructures, e.g. spin transistors, spin-blockade devices etc., by variation of the intensity S and frequency ω of the external radiation. |
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| Date |
2011-11-14T16:53:11Z
2011-11-14T16:53:11Z 2011 |
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| Type |
Article
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| Identifier |
Photon-induced spin transport in two-dimensional electron systems / А. Korostil // Збірник наукових праць Інституту проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України. — К.: ІПМЕ ім. Г.Є. Пухова НАН України, 2011. — Вип. 59. — С. 53-57. — Бібліогр.: 11 назв. — англ.
XXXX-0067 http://dspace.nbuv.gov.ua/handle/123456789/28550 85.75.-d,72,25 |
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| Language |
en
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| Relation |
Збірник наукових праць Інституту проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України
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Інститут проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України
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