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Spin Coulomb drag: an intrinsic dissipation mechanism in spintronics
Author(s) -
D'Amico I.,
Ullrich C. A.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200668024
Subject(s) - spintronics , condensed matter physics , physics , dissipation , spin (aerodynamics) , drag , semiconductor , spin engineering , coulomb , spin polarization , quantum mechanics , electron , ferromagnetism , mechanics , thermodynamics
Spin Coulomb drag (SCD) plays an important role in spintronics as an intrinsic source of dissipation for spin currents in metals and semiconductors. We discuss two aspects of SCD and their practical relevance: the power loss in a generic spintronics device, and the damping of collective spin‐density excitations in semiconductor quantum wells. A purely optical quantitative measurement of the SCD effect is suggested. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)