Topological aspect of disclinations in two-dimensional crystals

• 来源期刊: 中国物理B（英文版）
• 关键词: topological current theory disclinations two-dimensional crystals
• 年，卷（期）: 2009,（3）
• 页码范围: 1002-1008
• 页数: 7页
• 语种: 英文

摘要

By using topological current theory, this paper studies the inner topological structure of disclinations during the melting of two-dimensional systems. From two-dimensional elasticity theory, it finds that there are topological currents for topological defects in homogeneous equation. The evolution of disclinations is studied, and the branch conditions for generating, annihilating, crossing, splitting and merging of disclinations are given.