ELECTRON-HOLE SYSTEM IN ONE-DIMENSION

被引：28
|
作者：
NAGAOSA, N [1 ]
OGAWA, T [1 ]
机构：
[1] NIPPON TELEGRAPH & TEL PUBL CORP, BASIC RES LABS, TOKYO 180, JAPAN
来源：
SOLID STATE COMMUNICATIONS | 1993年 / 88卷 / 04期
关键词：
D O I：
10.1016/0038-1098(93)90512-L
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A high-density electron-hole system in one dimension is studied theoretically. Competition between the exciton Bose condensation and other Fermi-surface instabilities is clarified within a framework of the two-band g-ology. There is a parameter region where unconventional interband Cooper pairing with nonzero total momentum occurs. Optical spectra yield the Fermi-edge singularity resulting from the exciton condensation. Effects of backward scattering and random potential are also discussed.
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页码：295 / 299
页数：5
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