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Acoustomagnetoelectric effect in two-dimensional materials: Geometric resonances and Weiss oscillations

机译：二维材料中的分波轨道电效应：几何共振和Weiss振动

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摘要

We study electron transport in two-dimensional materials with parabolic and linear (graphene) dispersions of the carriers in the presence of surface acoustic waves and an external magnetic field using semiclassieal Boltzmann equations approach. We observe an oscillatory behavior of both the longitudinal and Hall electric currents as functions of the surface acoustic wave frequency at a fixed magnetic lield and as functions of the inverse magnetic field at a fixed frequency of the acoustic wave. We explain the former by the phenomenon of geometric resonances, while we relate the latter to the Weiss-like oscillations in the presence of the dynamic superlattice created by the acoustic wave. Thus we demonstrate the dual nature of the acoustomagnetoelectric effect in two-dimensional election gas.
机译：我们在使用Semicallassieal Boltzmann方程方法的情况下，使用二维材料以二维材料用抛物线和线性（石墨烯）分散体的抛物线和线性（石墨烯）分散体。我们观察纵向和霍尔电流的振荡行为作为固定磁线的表面声波频率的功能，以及作为声波的固定频率的逆磁场的功能。我们通过几何谐振的现象来解释前者，而我们在由声波产生的动态超晶格存在下，在存在的情况下，我们将后者与Weiss的振荡相关联。因此，我们证明了二维选配气体中的隔振器电效应的双重性。

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  • 来源
    《Physical review》 |2020年第4期|045407.1-045407.9|共9页
  • 作者

    I. G. Savenko; A. V. Kalameitscv; L. G. Mourokh; V. M. Kovalev;

  • 作者单位

    Center for Theoretical Physics of Complex Systems Institute for Basic Science (IBS) Daejeon 34126 Korea Rzhanov Institute of Semiconductor Physics Siberian Branch Russian Academy of Sciences Novosibirsk 630090 Russia;

    Rzhanov Institute of Semiconductor Physics Siberian Branch Russian Academy of Sciences Novosibirsk 630090 Russia;

    Physics Department Queens College of the City University of New York Flushing New York 11367 USA;

    Rzhanov Institute of Semiconductor Physics Siberian Branch Russian Academy of Sciences Novosibirsk 630090 Russia Novosibirsk State Technical University Novosibirsk 630072 Russia;

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