Frictional Drag between Two Dilute Two-Dimensional Hole Layers

R. Pillarisetty; Hwayong Noh; D. C. Tsui; E. P. De Poortere; E. Tutuc; M. Shayegan

doi:10.1103/physrevlett.89.016805

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Frictional Drag between Two Dilute Two-Dimensional Hole Layers

R. Pillarisetty·Hwayong Noh·D. C. Tsui·E. P. De Poortere·E. Tutuc·M. Shayegan

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Abstract

We report drag measurements on dilute double layer two-dimensional hole systems in the regime of r_s=19~39. We observed a strong enhancement of the drag over the simple Boltzmann calculations of Coulomb interaction, and deviations from the T^2 dependence which cannot be explained by phonon-mediated, plasmon-enhanced, or disorder-related processes. We suggest that this deviation results from interaction effects in the dilute regime.

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R. Pillarisetty, Hwayong Noh, D. C. Tsui, E. P. De Poortere, E. Tutuc, M. Shayegan. 2002-05-22. Frictional Drag between Two Dilute Two-Dimensional Hole Layers. https://doi.org/10.1103/physrevlett.89.016805

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