TEMPERATURE-DEPENDENCE OF MAGNETOPOLARON MASSES IN A GAAS/ALGAAS QUANTUM-DOT IN EXTERNAL MAGNETIC-FIELDS

被引：10
作者：
ZHU, KD
KOBAYASHI, T
机构：
[1] UNIV TOKYO, FAC SCI, DEPT PHYS, BUNKYO KU, TOKYO 113, JAPAN
[2] SHANGHAI JIAO TONG UNIV, DEPT APPL PHYS, SHANGHAI 200030, PEOPLES R CHINA
来源：
SOLID STATE COMMUNICATIONS | 1995年 / 95卷 / 11期
关键词：
NANOSTRUCTURES; SEMICONDUCTORS; ELECTRON-PHONON INTERACTIONS;
D O I：
10.1016/0038-1098(95)00271-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The temperature dependence of magnetopolaron masses in a GaAs/AlGaAs quantum dot with an external magnetic field normal to the plane of the quantum dot is investigated theoretically. In the case of weak magnetic fields when the cyclotron frequency is smaller than LO-phonon frequency (omega(c) < W-LO), both the cyclotron mass m(c+)*, and the cyclotron mass m(c-)* increase with temperature, whereas for strong magnetic fields (omega(c) > omega(LO)), the cyclotron masses m(c+)*, and m(c-)* decreases and increases with increasing temperature, respectively.
引用
收藏
页码：805 / 809
页数：5
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