arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0912.1364cond-mat.mes-hall
收藏

强辐照二维电子系统中多光子过程引起的非线性磁电阻振荡

Non-linear Magnetoresistance Oscillations in Intensely Irradiated Two-Dimensional Electron Systems Induced by Multi-Photon Processes

M. Khodas, H. -S. Chiang, A. T. Hatke, M. A. Zudov, M. G. Vavilov, L. N. Pfeiffer, K. W. West

摘要:

本文报道了强微波辐射下二维电子微分电阻率的磁振荡现象。这些振荡的周期不仅由微波频率决定,还由其强度决定。基于高微波功率下量子动力学的理论模型捕捉到了这种在微波强度上具有强非线性的现象的所有重要特征。我们的研究结果表明,在强直流电场的存在下,回旋共振及其谐波附近的多光子过程的关键作用,并提供了一种独特的方法来可靠地确定微波作用于电子的强度。

英文摘要:

We report on magneto-oscillations in differential resistivity of a two-dimensional electron system subject to intense microwave radiation. The period of these oscillations is determined not only by microwave frequency but also by its intensity. A theoretical model based on quantum kinetics at high microwave power captures all important characteristics of this phenomenon which is strongly nonlinear in microwave intensity. Our results demonstrate a crucial role of the multi-photon processes near the cyclotron resonance and its harmonics in the presence of strong dc electric field and offer a unique way to reliably determine the intensity of microwaves acting on electrons.

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。

↑