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arXiv 1003.0178cond-mat.mes-hall
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二维电子与声学声子相互作用的微波感生磁电阻

Microwave-induced magnetoresistance of two-dimensional electrons interacting with acoustic phonons

O. E. Raichev

摘要:

从理论上研究了微波辐射下二维电子系统中电子-声子相互作用对磁输运的影响。除了存在于微波的情况下的声子诱导的电阻振荡,辐照样品的磁阻包含振荡的贡献,由于电子散射的杂质和声学声子。由于电子-声子散射的贡献被描述为声子诱导的电阻振荡和微波诱导的电阻振荡的干涉的结果。此外,微波加热电子会导致一种特殊的声子诱导振荡。讨论了不同贡献的相对强度及其对参数的依赖性。众多的振荡贡献的相互作用表明一个奇特的磁阻图片在高迁移率层的温度时,电子-声子散射变得重要。

英文摘要:

The influence of electron-phonon interaction on magnetotransport in two-dimensional electron systems under microwave irradiation is studied theoretically. Apart from the phonon-induced resistance oscillations which exist in the absence of microwaves, the magnetoresistance of irradiated samples contains oscillating contributions due to electron scattering on both impurities and acoustic phonons. The contributions due to electron-phonon scattering are described as a result of the interference of phonon-induced and microwave-induced resistance oscillations. In addition, microwave heating of electrons leads to a special kind of phonon-induced oscillations. The relative strength of different contributions and their dependence on parameters are discussed. The interplay of numerous oscillating contributions suggests a peculiar magnetoresistance picture in high-mobility layers at the temperatures when electron-phonon scattering becomes important.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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