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Temperature dependent weak field Hall resistance in 2D carrier systems

S. Das Sarma·E. H. Hwang
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Abstract

Using the Drude-Boltzmann semiclassical transport theory, we calculate the weak-field Hall resistance of a two-dimensional system at low densities and temperatures, assuming carrier scattering by screened random charged impurity centers. The temperature dependent 2D Hall coefficient shows striking non-monotonicity in strongly screened systems, and in particular, we qualitatively explain the recent puzzling experimental observation of a decreasing Hall resistance with increasing temperature in a dilute 2D hole system. We predict that the impurity scattering limited Hall coefficient will eventually increase with temperature at higher temperatures.

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S. Das Sarma, E. H. Hwang. 2004-12-23. Temperature dependent weak field Hall resistance in 2D carrier systems. https://doi.org/10.1103/physrevlett.95.016401

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