Localized vibrations in perfect anharmonic lattices: Trapping on phonons

被引：3
作者：
Hizhnyakov, V. [1 ]
Shelkan, A. [1 ]
Klopov, M. [2 ]
Sievers, A. J. [3 ]
机构：
[1] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
[2] Tallinn Univ Technol, Inst Phys, EE-19086 Tallinn, Estonia
[3] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA
来源：
JOURNAL OF LUMINESCENCE | 2008年 / 128卷 / 5-6期
关键词：
Nonlinear dynamics; localized vibrations; phonons;
D O I：
10.1016/j.jlumin.2007.10.019
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A theory is developed, which allows one to calculate intrinsic local modes (ILMs) in infinite lattices and to find the effect of an ILM on phonons. One prediction is the appearance of linear local modes in the lattice nearby an ILM. To check these results, high-precision MD calculations of the vibrations of diatomic chains have been carried through. The results fully confirm the predictions. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：995 / 997
页数：3
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