Bound spin-excitons in two-dimensional electron gas

被引：0
|
作者：
Fleurov, V. [1 ]
Kikoin, K. [1 ]
机构：
[1] School of Physics and Astronomy, BRSFES, Tel Aviv University, Tel Aviv 69978, Israel
来源：
Fizika Nizkikh Temperatur (Kharkov) | 2001年 / 27卷 / 9-10期
关键词：
Binding energy - Electron resonance - Electron scattering - Electron traps - Energy gap - Excitons - Impurities - Magnetic field effects;
D O I：
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中图分类号：
学科分类号：
摘要：
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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页码：1083 / 1091
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