Bound spin-excitons in two-dimensional electron gas

Details Bound spin-excitons in two-dimensional electron gas Bound spin-excitons in two-dimensional electron gas

2001-04-04

arxiv.org/abs/cond-mat/0104074v1

Fizika Nizkikh Temperatur (2001), 27, 1083-1091

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 3 figures

Scientific paper

10.1063/1.1414568

A theory of the spin exciton capture by a magnetic impurity in a 2D electron gas is developed. We consider the resonance model for 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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