...
首页> 外文期刊>Physical review >Quantum thermal Hall effect in graphene
【24h】

Quantum thermal Hall effect in graphene

机译:石墨烯中的量子热霍尔效应

获取原文
获取原文并翻译 | 示例
           

摘要

The quantum thermal Hall effect in a six-terminal graphene device subjected to a thermal gradient and a perpendicular magnetic field is theoretically studied. We find that, when the Dirac-point energy is far away from the Fermi energy, the Hall thermal resistance has well-quantized plateaus and the longitudinal thermal resistance is zero at low temperature. On the other hand, when the Dirac-point energy is near the Fermi energy, a fine structure with a negative Hall-Lorentz number is exhibited in which the Wiedemann-Franz law is violated. This fine structure has a good scaling behavior and the analytical scaling functions are also obtained.
机译:从理论上研究了六端子石墨烯器件中受到热梯度和垂直磁场作用的量子热霍尔效应。我们发现,当狄拉克点能量远离费米能量时,霍尔热阻具有良好的平稳平台,并且在低温下纵向热阻为零。另一方面,当狄拉克点能量接近费米能量时,表现出具有负霍尔洛伦兹数的精细结构,其中违反了维德曼-弗朗兹定律。这种精细的结构具有良好的缩放性能,并且还获得了解析缩放功能。

著录项

  • 来源
    《Physical review》 |2011年第7ptab期|p.075416.1-075416.6|共6页
  • 作者单位

    Department of Physics, Capital Normal University, Beijing 100048, China;

    Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;

    Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;

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

    quantum hall effects; thermoelectric effects;

    机译:量子霍尔效应;热电效应;

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