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应用科学学报 ›› 1992, Vol. 10 ›› Issue (2): 181-183.

• 研究简报 • 上一篇    下一篇

二维Frenkel激子有效质量与温度的关系

王宗刚1, 顾世洧2   

  1. 1. 上海机械学院;
    2. 中国科学院国际材料物理中心, 上海交通大学
  • 收稿日期:1990-12-26 修回日期:1991-03-05 出版日期:1992-06-30 发布日期:1992-06-30

THE TEMPERATURE DEPENDENCE OF THE TWO-DIMENSIONAL FRENKEL EXCITON EFFECTIVE MASS

WANG ZONGGANG1, GIT SHIWEI2   

  1. 1. Shanghai Institute of Mechanical Engineering;
    2. International Centre for Materials Physios, Academia Siniaa, Shanghai Jiao Tong University
  • Received:1990-12-26 Revised:1991-03-05 Online:1992-06-30 Published:1992-06-30

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摘要： 文献[1]曾对极性晶体中的Frenkel激子,计及晶格的原子结构,计算了它的有效质量,本文用同样的方法进一步讨论二维Frenkel激子.

关键词: 极化晶体, 激子, 温度, 有效质量

Abstract: The properties of a two-dimensional Frenkel exoiton is discussed by means of a model which takes account of the atomicity of the lattice. The lattice vibration and the interaction between the exciton and the lattice displacement are treated by the second quantization method. The self-trapped energy and the temperature dependence of the effective mass of the two-dimensional Frenkel exoiton are derived.

Key words: exoiton, temperatore, polar crystal, effective mass