含有间隙式杂质的一维单原子链的晶格振动  

Lattice Vibration of One-Dimensional Monatomic Chain with an Interstitial Impurity

作　　者：卑桂君 李建海[2] 王庆禄[2] 

机构地区：[1]唐山建工中专,河北唐山063000 [2]唐山师范学院物理系,河北唐山063000

出　　处：《唐山师范学院学报》2008年第5期64-66,共3页Journal of Tangshan Normal University

基　　金：唐山师范学院资助项目(00C070201)。

摘　　要：主要研究了一维单原子链中间隙式杂质引起的晶格振动图像,分析了杂质质量和恢复力系数对振动模的影响。通过数值求解晶格振动振动方程组,得到周期性振动频率和局域振动模频率,并在此基础上讨论(g,ε)对局域模频率的影响。The picture of the lattice vibration mode for one-dimensional monatomic chain induced by an interstitial impurity is studied mainly. The influences of both the mass and the nearest coupling constants of the impurity atom on the local vibration mode are analyzed. Resolving the equations of the lattice vibration for one-dimensional monatomic chain by the numerical method, the frequencies of both the periodic vibration and the local mode in the lattice are obtained. And the influences of （g, ε ） on the frequencies of the local modes are also discussed based on the above.

关 键 词：间隙式杂质 单原子链 周期性振动 局域振动 

分 类 号：O421.5[理学—声学]