...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Commensurate-incommensurate phase transition in bilayer graphene
【24h】

Commensurate-incommensurate phase transition in bilayer graphene

机译：双层石墨烯的相称-不相称相变

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A commensurate-incommensurate phase transition in bilayer graphene is investigated in the framework of the Frenkel-Kontorova model extended to the case of two interacting chains of particles. Analytic expressions are derived to estimate the critical unit elongation of one of the graphene layers at which the transition to the incommensurate phase takes place, the length and formation energy of incommensurability defects (IDs), and the threshold force required to start relative motion of the layers on the basis of dispersion-corrected density functional theory (DFT-D) calculations of the interlayer interaction energy as a function of the relative position of the layers. These estimates are confirmed by atomistic calculations using the DFT-D based classical potential. The possibility to measure the barrier for relative motion of graphene layers by the study of formation of IDs in bilayer graphene is discussed.
机译：在Frenkel-Kontorova模型的框架下研究了双层石墨烯中相称相称的相变，该相移扩展到两个相互作用的粒子链的情况。推导解析表达式以估计发生向不相称相过渡的石墨烯层之一的临界单位伸长率，不相称缺陷（ID）的长度和形成能，以及开始石墨烯相对运动所需的阈值力。根据色散校正的密度泛函理论（DFT-D）计算的层间相互作用能随层的相对位置而变化。这些估计值是使用基于DFT-D的经典势能通过原子计算确认的。讨论了通过研究双层石墨烯中ID的形成来测量石墨烯层相对运动的障碍的可能性。

著录项

  • 来源
    《Physical review》 |2011年第4期|p.045404.1-045404.6|共6页
  • 作者

    Andrey M. Popov; Irina V. Lebedeva; Andrey A. Knizhnik; Yurii E. Lozovik; Boris V. Potapkin;

  • 作者单位

    Institute of Spectroscopy, Fizicheskaya Street 5, Troitsk, Moscow Region, 142190, Russia;

    NRC 'Kurchatov Institute,' Kurchatov Square 1, Moscow, 123182, Russia,Kintech Lab Ltd, Kurchatov Square 1, Moscow, 123182, Russia,Moscow Institute of Physics and Technology, Institutskii pereulok 9, Dolgoprudny, Moscow Region, 141701, Russia;

    NRC 'Kurchatov Institute,' Kurchatov Square 1, Moscow, 123182, Russia,Kintech Lab Ltd, Kurchatov Square 1, Moscow, 123182, Russia;

    Institute of Spectroscopy, Fizicheskaya Street 5, Troitsk, Moscow Region, 142190, Russia,Moscow Institute of Physics and Technology, Institutskii pereulok 9, Dolgoprudny, Moscow Region, 141701, Russia;

    NRC 'Kurchatov Institute,' Kurchatov Square 1, Moscow, 123182, Russia,Kintech Lab Ltd, Kurchatov Square 1, Moscow, 123182, Russia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    linear defects: dislocations, disclinations; phase transitions and critical phenomena;

    机译：线性缺陷：错位;错位;相变和临界现象;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号