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Magnetoelectronic properties of multilayer black phosphorus

机译:多层黑磷的磁电性能

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摘要

We examine the electronic properties of two-dimensional electron gas in black phosphorus multilayers in the presence of a perpendicular magnetic field, highlighting the role of in-plane anisotropy on various experimental quantities such as ac magnetoconductivity, screening, and magnetoplasmons. We find that resonant structures in the ac conductivity exhibits a redshift with increasing doping due to interband coupling γ. This arises from an extra correction term in the Landau energy spectrum proportional to n~2γ~2 (n is Landau index), up to second order in y. We found also that Coulomb interaction leads to highly anisotropic magnetoexcitons.
机译:我们在存在垂直磁场的情况下检查了黑磷多层膜中二维电子气的电子性质,强调了面内各向异性对各种实验量(如交流磁导率,屏蔽和磁等离子体)的作用。我们发现,由于带间耦合γ,交流电导率中的谐振结构随着掺杂的增加而呈现出红移。这是由于在Landau能谱中与n〜2γ〜2成正比的额外校正项(n是Landau指数),直到y的二阶。我们还发现库仑相互作用导致高度各向异性的磁激子。

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  • 来源
    《Physical review》 |2015年第8期|085408.1-085408.7|共7页
  • 作者单位

    Department of Electrical & Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA,Center for Statistical and Theoretical Condensed Matter Physics, ZheJiang Normal University, Jinhua 321004, People's Republic of China;

    Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco E28049 Madrid, Spain;

    School of Physics & Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom;

    Department of Electrical & Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    micro- and nano-electromechanical systems (MEMS/NEMS) and devices; electronic transport in nanoscale materials and structures;

    机译:微和纳米机电系统(MEMS / NEMS)和设备;纳米级材料和结构中的电子传输;

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