title: Detection of current-induced spins by ferromagnetic contacts.
abstract: Detection of current-induced spin accumulation via ferromagnetic contacts is discussed. Onsager's relations forbid that in a two-probe configuration, spins excited by currents in time-reversal symmetric systems can be detected by switching the magnetization of a ferromangetic detector contact. Nevertheless, current-induced spins can be transferred as a torque to a contact magnetization and can affect the charge currents in many-terminal configurations. We demonstrate the general concepts by solving the microscopic transport equations for the diffuse Rashba system with magnetic contacts.
authors.affiliation: Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada.
authors.forename: I
authors.initials: I
authors.lastname: Adagideli
authors.forename: G E W
authors.initials: GE
authors.lastname: Bauer
authors.forename: B I
authors.initials: BI
authors.lastname: Halperin