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首页> 外文期刊>Physica status solidi, B. Basic research >A model for the microwave assisted magnetoresistance oscillations in a 2D electron system
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A model for the microwave assisted magnetoresistance oscillations in a 2D electron system

机译:二维电子系统中微波辅助磁阻振荡的模型

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In this work we present a model for the photoconductivity of a two dimensional electron system (2DES) subjected to a magnetic field. The model includes the microwave and Landau contributions in a non-perturbative exact way, Impurity scattering effects are treated perturbatively. Based on this formalism, we provide a Kubo-like formula that takes into account the oscillatory Floquet structure of the problem. We discuss results related with the recently discovered zero-resistance states. It is found that, in agreement with experiment, negative dissipation can only be induced in very high mobility samples. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
机译:在这项工作中,我们提出了一个二维电子系统(2DES)在磁场下的光电导性的模型。该模型以非扰动的精确方式包括微波和Landau贡献,扰动地处理了杂质散射效应。基于这种形式主义,我们提供了一个类似于Kubo的公式,该公式考虑了该问题的振荡Floquet结构。我们讨论与最近发现的零电阻状态有关的结果。发现与实验一致,负耗散只能在非常高迁移率的样品中引起。 (c)2005 WILEY-VCH Verlag GmbH&Co. KGaA,Weinheim。

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