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Photon-induced spin transport in two-dimensional electron systems

Photon-induced spin transport in two-dimensional electron systems

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....

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Main Author: Korostil, A.
Format: Article
Language:English
Published: Інститут проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України 2011
Series:Збірник наукових праць Інституту проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/28550
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spelling irk-123456789-285502016-04-14T15:09:06Z Photon-induced spin transport in two-dimensional electron systems Korostil, A. 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. 2011 Article 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 en Збірник наукових праць Інституту проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України Інститут проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
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.
format Article
author Korostil, A.
spellingShingle Korostil, A.
Photon-induced spin transport in two-dimensional electron systems
Збірник наукових праць Інституту проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України
author_facet Korostil, A.
author_sort Korostil, A.
title Photon-induced spin transport in two-dimensional electron systems
title_short Photon-induced spin transport in two-dimensional electron systems
title_full Photon-induced spin transport in two-dimensional electron systems
title_fullStr Photon-induced spin transport in two-dimensional electron systems
title_full_unstemmed Photon-induced spin transport in two-dimensional electron systems
title_sort photon-induced spin transport in two-dimensional electron systems
publisher Інститут проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України
publishDate 2011
url http://dspace.nbuv.gov.ua/handle/123456789/28550
citation_txt 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.
series Збірник наукових праць Інституту проблем моделювання в енергетиці ім. Г.Є. Пухова НАН України
work_keys_str_mv AT korostila photoninducedspintransportintwodimensionalelectronsystems
first_indexed 2023-10-18T17:26:10Z
last_indexed 2023-10-18T17:26:10Z
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