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arXiv 2602.02129cond-mat.mes-hall
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粘性电子流与二维通道中的非线性磁输运

Viscous Electron Flow and Nonlinear Magnetotransport in 2D Channels

Instituto de Física da Universidade de São Paulo(圣保罗大学物理研究所);Institute of Semiconductor Physics(半导体物理研究所)

A. D. Levin, G. M. Gusev, A. K. Bakarov

AI总结:

研究揭示了二维通道中粘性电子流的非线性磁输运特性,通过电子配对效应揭示了流体动力学行为与相关电子态的相互作用。

摘要:

我们研究了在狭窄的砷化镓通道中粘性二维电子流的非线性输运特性。磁电导的非线性行为表现出非单调特性,这是流体动力学 regime 中电子配对的特征。能够同时考虑这些相互作用对剪切应力松弛和由于电子加热引起的粘性变化的理论模型与数据吻合良好。非线性区域因此揭示了这些相关态如何控制电子流体的流体动力学行为。我们的发现确立了非线性输运区域作为解析相关电子态和动量弛豫复杂相互作用的有力探针。

英文摘要:

We examine nonlinear transport in a viscous two-dimensional electron fluid within narrow GaAs channels. The differential magnetoresistance shows nonmonotonic behavior, a signature of electron pairing in the hydrodynamic regime. Theoretical models that account for both the influence of these interactions on shear stress relaxation and viscosity changes from electron heating show good agreement with the data. The nonlinear regime thus reveals how such correlated states govern the hydrodynamic behavior of the electron fluid. Our findings establish the nonlinear transport regime as a powerful probe for dissecting the complex interplay of correlated electron states and momentum relaxation in the hydrodynamic flow of an electron fluid.

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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