Frictional Drag between Two Dilute Two-Dimensional Hole Layers

Details Frictional Drag between Two Dilute Two-Dimensional Hole Layers Frictional Drag between Two Dilute Two-Dimensional Hole Layers

2002-02-05

arxiv.org/abs/cond-mat/0202077v2

Phys. Rev. Lett. 89, 016805 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures, accepted in Phys. Rev. Lett. Added single layer transport data

Scientific paper

10.1103/PhysRevLett.89.016805

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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