中国物理B ›› 1998, Vol. 7 ›› Issue (11): 841-850.doi: 10.1088/1004-423X/7/11/006

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

LATTICE DYNAMICS OF WURTZITE SEMICONDUCTORS GaN AND AlN

韦广红, 资剑, 张开明, 谢希德   

  1. Surface Physics Laboratory, Fudan University, Shanghai 200433, China
  • 收稿日期:1997-12-17 修回日期:1998-06-19 出版日期:1998-11-20 发布日期:1998-11-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China and by the State Commission of Science and Technology of China.

LATTICE DYNAMICS OF WURTZITE SEMICONDUCTORS GaN AND AlN

Wei Guang-hong (韦广红), Zi Jian (资剑), Zhang Kai-ming (张开明), Xie Xi-de (谢希德)   

  1. Surface Physics Laboratory, Fudan University, Shanghai 200433, China
  • Received:1997-12-17 Revised:1998-06-19 Online:1998-11-20 Published:1998-11-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China and by the State Commission of Science and Technology of China.

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摘要： The lattice dynamics of wurtzite GaN and AlN is studied within the framework of a rigid-ion model. Short-range interactions up to the third nearest neighbors are described by using a valence-force-field potential and the long-range Coulomb interactions between ions are calculated via an Ewald summation. Phonon dispersion curves, density of states and specific heats are presented.

Abstract: The lattice dynamics of wurtzite GaN and AlN is studied within the framework of a rigid-ion model. Short-range interactions up to the third nearest neighbors are described by using a valence-force-field potential and the long-range Coulomb interactions between ions are calculated via an Ewald summation. Phonon dispersion curves, density of states and specific heats are presented.

中图分类号:  (Phonon states and bands, normal modes, and phonon dispersion)

  • 63.20.D-
71.20.Nr (Semiconductor compounds) 78.40.Fy (Semiconductors) 65.60.+a (Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc.) 73.20.At (Surface states, band structure, electron density of states)