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
相关论文
共 50 条
  • [1] Polaron percolation in diluted magnetic semiconductors
    Kaminski, A.
    Das Sarma, S.
    [J]. 2002, American Physical Society (88)
  • [2] Polaron percolation in diluted magnetic semiconductors
    Kaminski, A
    Das Sarma, S
    [J]. PHYSICAL REVIEW LETTERS, 2002, 88 (24) : 4
  • [3] Polaron-polaron interactions in diluted magnetic semiconductors
    Wolff, PA
    Bhatt, RN
    Durst, AC
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) : 5196 - 5198
  • [4] BOUND MAGNETIC POLARON IN DILUTED MAGNETIC SEMICONDUCTORS - ANALYTIC RESULTS
    SPALEK, J
    KOSSUT, J
    [J]. SOLID STATE COMMUNICATIONS, 1987, 61 (08) : 483 - 486
  • [5] Bound-magnetic-polaron molecule in diluted magnetic semiconductors
    Bednarski, Henryk
    Spalek, Jozef
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (23)
  • [6] Bound magnetic polaron in Cr-based diluted magnetic semiconductors
    Herbich, M
    Twardowski, A
    Scalbert, D
    Petrou, A
    [J]. PHYSICAL REVIEW B, 1998, 58 (11): : 7024 - 7034
  • [7] Bound magnetic polaron interactions in insulating doped diluted magnetic semiconductors
    Durst, AC
    Bhatt, RN
    Wolff, PA
    [J]. PHYSICAL REVIEW B, 2002, 65 (23): : 2352051 - 23520510
  • [8] Spin polaron in a quantum dot of the diluted magnetic semiconductors
    Gnanasekar, K
    Navaneethakrishnan, K
    [J]. MODERN PHYSICS LETTERS B, 2004, 18 (10): : 419 - 426
  • [9] Theory for the exciton magnetic polaron in diluted magnetic semiconductors with thermodynamic fluctuations of magnetization
    Umehara, M
    [J]. PHASE TRANSITIONS, 2002, 75 (7-8) : 1027 - 1033
  • [10] Effective interaction Hamiltonian of polaron pairs in diluted magnetic semiconductors
    Angelescu, DE
    Bhatt, RN
    [J]. PHYSICAL REVIEW B, 2002, 65 (07): : 1 - 8
12345