Dislocation neutralizing in a self-organized array of dislocation and anti-dislocation

论文摘要

A one-dimensional（1 D） self-organized array composed of dislocation and anti-dislocation is analytically investigated in the frame of Peierls theory. From the exact solution of the Peierls equation, it is found that there exists strong neutralizing effect that makes the Burgers vector of each individual dislocation in the equilibrium array smaller than that of an isolated dislocation. This neutralizing effect is not negligible even though dislocations are well separated. For example, when the distance between the dislocation and the anti-dislocation is as large as ten times of the dislocation width, the actual Burgers vector is only about 80% of an isolated dislocation. The neutralizing effect originates physically from the power-law asymptotic behavior that enables two dislocations interfere even though they are well separated.

论文目录

• 1. Introduction
• 2. One-dimensional self-organized array of dis-locations
• 3. Dislocation neutralizing
• 4. Summary and discussion

文章来源

类型: 期刊论文

作者: 邓凤麟,胡湘生,王少峰

来源: Chinese Physics B 2019年11期

年度: 2019

分类: 基础科学

专业: 物理学

单位: Department of Physics and Institute for Structure and Function, Chongqing University,Department of Mechanics, Huazhong University of Science and Technology

基金: Project supported by the National Natural Science Foundation of China(Grant No.11874093)

分类号: O411

页码: 255-261

总页数: 7

文件大小: 268K

下载量: 2