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Bound spin-excitons in two-dimensional electron gas

Bound spin-excitons in two-dimensional electron gas

A theory of the spin exciton capture by a magnetic impurity in a 2D electron gas is developed. We consider a resonance model for the electron scattering by a transition metal impurity and calculate the binding potential for spin excitons. This potential is spin selective and is capab...

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Bibliographic Details
Main Authors: Fleurov, V., Kikoin, K.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2001
Series:Физика низких температур
Subjects:
Статьи, посвященные столетию со дня рождения Л. В. Шубникова
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/129009
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Summary:A theory of the spin exciton capture by a magnetic impurity in a 2D electron gas is developed. We consider a resonance model for the electron scattering by a transition metal impurity and calculate the binding potential for spin excitons. This potential is spin selective and is capable of binding a spin exciton with zero angular momentum. In order to trap an exciton with a nonzero angular momentum m, the potential must exceed a certain threshold value, depending on m.

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