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arXiv · 2106.03401

Finite-frequency response of Rasba electron gas with two-particle scattering

K. E. Nagaev
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Abstract

Two-dimensional systems with Rashba spin-orbit coupling are not Galilean invariant and therefore electron--electron collisions in them may affect the current. However when taken alone, they cannot ensure a nonzero dc resistivity, so their effects are masked by impurity scattering. Here we calculate the related finite-frequency response and show that the electron--electron scattering in clean Rashba conductors decreases the Drude weight while resulting in a finite dissipative component of the response outside of the Drude peak.

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K. E. Nagaev. 2021-06-07. Finite-frequency response of Rasba electron gas with two-particle scattering. https://doi.org/10.1103/physrevb.104.075423

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