Hydrodynamic Description of Transport in Strongly Correlated Electron Systems
Hydrodynamic Description of Transport in Strongly Correlated Electron Systems
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DOI：
10.1103/physrevlett.106.256804
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发表时间：
2011-06-24
影响因子：
8.6
通讯作者：
Spivak, B.
中科院分区：
文献类型：
--
作者：
Andreev, A. V.;Kivelson, Steven A.;Spivak, B.
我们发展了光滑无序势中电子液体的电阻率和磁阻的流体动力学描述。当电子-电子散射长度足够短时，这种方法是有效的。在较宽的温度范围内，耗散主要由电子流体中的热通量控制，而电阻率与导热系数kappa成反比。这与斯托克斯流动形成鲜明对比，在斯托克斯流动中，阻力与卡帕无关，与流体粘度成正比。我们还发现了自旋磁阻的一种新的流体力学机制。
We develop a hydrodynamic description of the resistivity and magnetoresistance of an electron liquid in a smooth disorder potential. This approach is valid when the electron-electron scattering length is sufficiently short. In a broad range of temperatures, the dissipation is dominated by heat fluxes in the electron fluid, and the resistivity is inversely proportional to the thermal conductivity, kappa. This is in striking contrast to the Stokes flow, in which the resistance is independent of kappa and proportional to the fluid viscosity. We also identify a new hydrodynamic mechanism of spin magnetoresistance.