EXCITONIC EFFECTS IN OPTICAL-SPECTRA OF A QUASI-ONE-DIMENSIONAL ELECTRON-GAS

被引:20
作者
HAWRYLAK, P
机构
关键词
D O I
10.1016/0038-1098(92)90605-9
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The radiative recombination of electrons in a quasi-one-dimensional gas with valence band holes localized by potential fluctuation or acceptors is investigated. For holes localized by potential fluctuations the emission spectrum contains the singularity at low energy due to the divergence in single particle density of states and a singularity at the Fermi level (Fermi Edge Singularity) due to the electron-hole pair excitations. For holes localized on acceptors only the Fermi Edge Singularity survives as the dominant structure in the spectrum.
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页码:525 / 527
页数:3
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