教学研究

双层转角石墨烯结构的构建方法浅析

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  • 湖南师范大学 物理与电子科学学院,湖南 长沙 410081
陈明星( 1981—) ,男,湖南江华人,湖南师范大学物理与电子科学学院教授,博士,主要从事固体物理教学和计算凝聚态物理研究 工作

收稿日期: 2021-02-02

  修回日期: 2021-03-19

  网络出版日期: 2021-08-24

基金资助

湖南省教育厅教改项目( 2019JG-YB085) 、湖南省教育厅研究生教学平台项目( 2019) 以及湖南师范大学教改项目( 2019) 资助

A brief analysis of the method for constructing the structures of twisted graphene bilayers

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  • School of Physics and Electronics,Hunan Normal University,Changsha,Hunan 410081,China

Received date: 2021-02-02

  Revised date: 2021-03-19

  Online published: 2021-08-24

摘要

双层转角石墨烯是近几年凝聚态物理领域的前沿研究热点. 本文阐述了基于晶体周期性和超胞-原胞变换矩阵构造石墨烯超胞结构的方法,并将其应用于双层转角石墨烯结构的构造,增进学生对晶体结构周期性这一特点的理解,掌握描述复杂晶体结构的数学方法,并了解相关前沿进展.

本文引用格式

陈明星 . 双层转角石墨烯结构的构建方法浅析[J]. 大学物理, 2021 , 40(8) : 8 . DOI: 10.16854 / j.cnki.1000-0712.210060

Abstract

Twisted graphene bilayer has been a hot topic in condensed matter physics.Here,a method

for con- structing the geometric structure of graphene supercells is illustrated,which makes use of

the translational symmetry of crystal and the transformation matrix between the supercell and the

primitive cell. Then,the method is applied to construct the structure of twisted graphene bilayers.

This system can be used as an example in the lecture of solid state physics,which is

helpful for students to achieve a better understanding of the mathmatic method of describing the

geometric structure of crystals.

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