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Magneto-Coulomb drag: interplay of electron--electron interactions and Landau quantization

M. C. Bonsager·K. Flensberg·B. Y. -K. Hu·A. -P. Jauho
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Abstract

We use the Kubo formalism to calculate the transresistivity $ρ_{21}$ for carriers in coupled quantum wells in a large perpendicular magnetic field $B$. We find that $ρ_{21}$ is enhanced by approximately 50--100 times over that of the B=0 case in the interplateau regions of the integer quantum Hall effect. The presence of both electron--electron interactions and Landau quantization results in (i) a twin-peaked structure of $ρ_{21}(B)$ in the inter-plateau regions at low temperatures, and, (ii) for the chemical potential at the center of a Landau level band, a peaked temperature dependence of $ρ_{21}(T)/T^2$.

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M. C. Bonsager, K. Flensberg, B. Y. -K. Hu, A. -P. Jauho. 1996-03-15. Magneto-Coulomb drag: interplay of electron--electron interactions and Landau quantization. https://doi.org/10.1103/physrevlett.77.1366

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