大学物理 ›› 2012, Vol. 31 ›› Issue (5): 21-21.

• 著者文摘 • 上一篇    下一篇

具有在位势的一维双原子链中杂质引起的对称局域模

吕岿[1] 童国平[2] 毛杰健[1]   

  1. [1]江西上饶师范学院物电系,江西上饶334001 [2]浙江师范大学数理与信息工程学院,浙江金华321004
  • 出版日期:2012-05-25 发布日期:2012-05-20

The symmetric local vibration mode induced by an impurity atom in a diatomic linear chain with on-site potential

  • Online:2012-05-25 Published:2012-05-20

摘要: 对具有在位势且含杂质的一维双原子链的晶格振动方程组进行求解,得到了局域振动的解析解,给出了在位势对局域振动影响的基本特征,并简要讨论了对称局域模的存在形式.

关键词: 杂质, 在位势, 局域模

Abstract: The lattice vibration equations of a diatomic chain with an impurity atom and on-site potential are solved.The analytic solutions of local vibration are obtained.The basic features of the effect of on-site potential on the local vibration are given,and the existence forms of symmetric localized mode are also discussed.

Key words: impurity, on-site potential, localized mode

中图分类号: 

  • O481