Browsing by Author/Contributor "Hankiewicz, E. M."

Now showing items 1-8 of 8

  • Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas 

    Hankiewicz, E. M.; Vignale, Giovanni, 1957- (American Physical Society, 2006)
    We develop the microscopic theory of the extrinsic spin-Hall conductivity of a two- dimensional electron gas, including skew- scattering, side-jump, and Coulomb interaction effects. We find that while the spin-Hall ...

  • Gilbert damping and spin Coulomb drag in a magnetized electron liquid with spin-orbit interaction 

    Hankiewicz, E. M.; Vignale, Giovanni, 1957-; Tserkovnyak, Yaroslav (American Physical Society, 2007)
    We present a microscopic calculation of the Gilbert damping constant for the magnetization of a two-dimensional spin- polarized electron liquid in the presence of intrinsic spin-orbit interaction. First, we show that the ...

  • Inhomogeneous Gilbert damping from impurities and electron-electron interactions 

    Hankiewicz, E. M.; Vignale, Giovanni, 1957-; Tserkovnyak, Yaroslav (American Physical Society, 2008)
    We present a unified theory of magnetic damping in itinerant electron ferromagnets at order q2 including electron-electron interactions and disorder scattering. We show that the Gilbert damping coefficient can be expressed ...

  • Phase Diagram of the Spin Hall Effect 

    Hankiewicz, E. M.; Vignale, Giovanni, 1957- (American Physical Society, 2008)
    We obtain analytic formulas for the frequency-dependent spin-Hall conductivity of a two-dimensional electron gas (2DEG) in the presence of impurities, linear spin- orbit Rashba interaction, and external magnetic field ...

  • Side jumps in the spin Hall effect: Construction of the Boltzmann collision integral 

    Culcer, Dimitrie; Hankiewicz, E. M.; Vignale, Giovanni, 1957-; Winkler, R. (American Physical Society, 2010)
    We present a systematic derivation of the side-jump contribution to the spin Hall current in systems without band-structure spin-orbit interactions, focusing on the construction of the collision integral for the Boltzmann ...

  • Spin-Hall effect and spin-Coulomb drag in doped semiconductors 

    Hankiewicz, E. M.; Vignale, Giovanni, 1957- (American Institute of Physics, 2009)
    In this review, we describe in detail two important spin-transport phenomena: the extrinsic spin-Hall effect (coming from spin-orbit interactions between electrons and impurities) and the spin-Coulomb drag. The interplay ...

  • Spin-Hall Effect in a [110] GaAs Quantum Well 

    Hankiewicz, E. M.; Vignale, Giovanni, 1957-; Flatte, M. E. (American Physical Society, 2006)
    A self-consistent treatment of the spin-Hall effect requires consideration of the spin- orbit coupling and electron-impurity scattering on equal footing. This is done here for the experimentally relevant case of a [110] ...

  • Transverse spin diffusion in ferromagnets 

    Tserkovnyak, Yaroslav; Hankiewicz, E. M.; Vignale, Giovanni, 1957- (American Physical Society, 2009)
    We discuss the dissipative diffusion-type term of the form m×∇2∂tm in the phenomenological Landau-Lifshitz equation of ferromagnetic precession, which describes enhanced Gilbert damping of finite-momentum spin waves. This ...