INTERSUBBAND EXCITATIONS OF QUASI-ONE-DIMENSIONAL ELECTRON-SYSTEMS IN A MAGNETIC FIELD

被引：0
|
作者：
KUMADA, S
SUGA, S
OKIJI, A
机构：
[1] Department of Applied Physics, Osaka University, Suita Osaka
来源：
SOLID STATE COMMUNICATIONS | 1995年 / 94卷 / 05期
关键词：
NANOSTRUCTURE; SEMICONDUCTORS; ELECTRON-ELECTRON INTERACTIONS; INELASTIC LIGHT SCATTERING;
D O I：
10.1016/0038-1098(95)00061-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Intersubband excitation spectra of quasi-one-dimensional electron systems in quantum wires are calculated by the perturbation expansion with respect to the Coulmb interaction between electrons in the presence of perpendicular magnetic fields. We find the peak structure at the upper edge of spectra of the single-particle excitation, in addition to the main peak corresponding to the magnetoplasmon. With increasing the magnitude of magnetic fields, this additional peak separates from the spectra of the single-particle excitation and the intensity of this peak is gradually decreased. We consider that the additional peak is connected with the attractive interaction between electrons-which appears only in the presence of magnetic fields.
引用
收藏
页码：397 / 400
页数：4
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