Existence and Stability of Compact-Like Discrete Breather in Discrete One-Dimensional Monatomic Chains

作     者：徐权 田强 

作者机构：Scientific and Technological Office Daqing Normal University Daqing 163712 Department of Physics Beijing Normal University Beijing 100875 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2007年第24卷第8期

页      面：2197-2199页

核心收录：

学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10574011  and the Natural Science Foundation of Heilongjiang Province under Grant No A200506 

主　　题：coated conductor buffer layer self-epitaxy CeO2 

摘      要：Compact-like discrete breathers in discrete one-dimensional monatomic chains are investigated by discussing a generalized discrete one-dimensional monatomic model. It is proven that compact-like discrete breathers exist not only in soft Ф^4 potential but also in hard Ф^4 potential and K4 chains. The measurements of compact-like discrete breathers＇ core in soft and hard Ф^4 potential are determined by coupling parameter K4, while the measurements of compact-like discrete breathers＇ core in K4 chains are not related to coupling parameter K4. The stabilities of compact-like discrete breathers correlate closely to coupling parameter K4 and the boundary condition of lattice.