منابع مشابه
Spin Current in Spin Orbit Coupling Systems
We present a simple and pedagogical derivation of the spin current as the linear response to an external electric field for both Rashba and Luttinger spin–orbital coupling Hamiltonians. Except for the adiabatic approximation, our derivation is exact to the linear order of the electric field for both models. The spin current is a direct result of the difference in occupation levels between diffe...
متن کاملIntrinsic spin torque without spin-orbit coupling.
We derive an intrinsic contribution to the non-adiabatic spin torque for non-uniform magnetic textures. It differs from previously considered contributions in several ways and can be the dominant contribution in some models. It does not depend on the change in occupation of the electron states due to the current flow but rather is due to the perturbation of the electronic states when an electri...
متن کاملSpin-orbit coupling and quantum spin Hall effect for neutral atoms without spin flips.
We propose a scheme which realizes spin-orbit coupling and the quantum spin Hall effect for neutral atoms in optical lattices without relying on near resonant laser light to couple different spin states. The spin-orbit coupling is created by modifying the motion of atoms in a spin-dependent way by laser recoil. The spin selectivity is provided by Zeeman shifts created with a magnetic field grad...
متن کاملKondo effect in graphene with Rashba spin-orbit coupling
D. Mastrogiuseppe,1,2 A. Wong,3 K. Ingersent,3 S. E. Ulloa,1,2 and N. Sandler1,2 1Department of Physics and Astronomy, and Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701-2979, USA 2Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany 3Department of Physics, University of Florida, P.O. Box 118440, Gaines...
متن کاملQuasiclassical approach and spin-orbit coupling
We discuss the quasiclassical Green function method for a two-dimensional electron gas in the presence of spin-orbit coupling, with emphasis on the meaning of the ξ-integration procedure. As an application of our approach, we demonstrate how the spin-Hall conductivity, in the presence of spin-flip scattering, can be easily obtained from the spin-density continuity equation.
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1955
ISSN: 0033-068X
DOI: 10.1143/ptp.13.457