Abstract
We report drag measurements on dilute double layer two-dimensional hole systems in the regime of . We observed a strong enhancement of the drag over the simple Boltzmann calculations of Coulomb interaction, and deviations from the 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.
- Received 4 February 2002
DOI:https://doi.org/10.1103/PhysRevLett.89.016805
©2002 American Physical Society