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| VOLUME 102 (2015) | ISSUE 11 | PAGE 848 |
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Low-temperature spin Coulomb drag in a two-dimensional electron gas
A. G. Yashenkin+*, I. V. Gornyi
 +Petersburg Nuclear Physics Institute, National Research Centre "Kurchatov Institute", 188300 Gatchina, Russia *Department of Physics, St. Petersburg State University, 199034 St. Petersburg, Russia ×Institut für Nanotechnologie, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany °Ioffe Physico-Technical Institute, 194021 St. Petersburg, Russia ∇Institut für Theorie der Kondensierten Materie, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany  Landau Institute for Theoretical Physics of the RAS, 119334 Moscow, Russia
Abstract
The phenomenon of low-temperature spin Coulomb drag in a two-dimensional electron gas is investigated. The spin transresistivity coefficient is essentially enhanced in the diffusive regime, as compared to conventional predictions. The origin of this enhancement is the quantum coherence of spin-up and spin-down electrons propagating in the same random impurity potential and coupled via the Coulomb interaction. A comprehensive analysis of spin and interlayer Coulomb drag effects is presented. |