Topological aspect of disclinations in two-dimensional crystals

doi:10.1088/1674-1056/18/3/026

中国物理B ›› 2009, Vol. 18 ›› Issue (3): 1002-1008.doi: 10.1088/1674-1056/18/3/026

• THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS • 上一篇下一篇

Topological aspect of disclinations in two-dimensional crystals

齐维开, 朱涛, 陈勇, 任继荣

Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China

收稿日期:2008-06-25 修回日期:2008-08-05 出版日期:2009-03-20 发布日期:2009-03-20
基金资助:
Project supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry of China and by the Interdisciplinary Innovation Research Fund for Young Scholars, Lanzhou University.

Topological aspect of disclinations in two-dimensional crystals

Qi Wei-Kai(齐维开), Zhu Tao(朱涛), Chen Yong(陈勇)^†, and Ren Ji-Rong(任继荣)

Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China

Received:2008-06-25 Revised:2008-08-05 Online:2009-03-20 Published:2009-03-20
Supported by:
Project supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry of China and by the Interdisciplinary Innovation Research Fund for Young Scholars, Lanzhou University.

摘要/Abstract

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.

Abstract: 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.

Key words: topological current theory, disclinations, two-dimensional crystals

中图分类号: (Linear defects: dislocations, disclinations)

61.72.Lk

61.72.Bb (Theories and models of crystal defects) 62.20.D- (Elasticity)

齐维开, 朱涛, 陈勇, 任继荣. Topological aspect of disclinations in two-dimensional crystals[J]. 中国物理B, 2009, 18(3): 1002-1008.

Qi Wei-Kai(齐维开), Zhu Tao(朱涛), Chen Yong(陈勇), and Ren Ji-Rong(任继荣). Topological aspect of disclinations in two-dimensional crystals[J]. Chin. Phys. B, 2009, 18(3): 1002-1008.

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Topological aspect of disclinations in two-dimensional crystals

Topological aspect of disclinations in two-dimensional crystals

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