NANOCRYSTALS OF DILUTED MAGNETIC SEMICONDUCTORS - MODEL FOR MAGNETIC POLARON

被引：46
|
作者：
BHATTACHARJEE, AK
机构：
[1] Laboratoire de Physique des Solides, Université Paris Sud
来源：
PHYSICAL REVIEW B | 1995年 / 51卷 / 15期
关键词：
D O I：
10.1103/PhysRevB.51.9912
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a simple model for the magnetic polaron associated with an electron-hole pair in a semimagnetic semiconductor quantum dot. An exactly soluble Hamiltonian based on the effective-mass approximation is used to calculate the equilibrium properties. The polaron binding energy decreases with increasing temperature or magnetic field. Low-temperature magnetization and luminescence polarization show rapid saturation with magnetic field. Strong light-induced enhancement of magnetization is predicted. © 1995 The American Physical Society.
引用
收藏
页码：9912 / 9916
页数：5
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