title: Frictional drag between two dilute two-dimensional hole layers.
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 T2 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.
authors.affiliation: Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA.
authors.forename: R
authors.initials: R
authors.lastname: Pillarisetty
authors.forename: Hwayong
authors.initials: H
authors.lastname: Noh
authors.forename: D C
authors.initials: DC
authors.lastname: Tsui
authors.forename: E P
authors.initials: EP
authors.lastname: De Poortere
authors.forename: E
authors.initials: E
authors.lastname: Tutuc
authors.forename: M
authors.initials: M
authors.lastname: Shayegan