2007, Vol.10, No.3, pp.238-246
We investigate the dynamics of spin-nonequilibrium electron
systems in the hydrodynamic flow regime, when the normal
scattering processes, which conserve the total quasi-momentum of
the system of electrons and quasi-particles that interact with
them, dominate over other scattering processes. We obtain a set of
spin-hydrodynamic equations for the case of an arbitrary electron
spectrum that varies slowly with coordinates. Solving the
one-dimensional non-linear problem we found the exact solutions
both for the electrical potential in the open-ends circuit and for
the spin-electrical oscillation in an inhomogeneous conducting
ring. As we demonstrate, the oscillation characteristics are
different in the cases of a magnetic ring and a non-magnetic ring
to which the spin polarization was injected. We found also that a
voltage between the ends of the open circuit may reveal the
presence of an inhomogeneous spin polarization of the electron
density.
Key words:
spin, pendulum, inhomogeneity
Full text: Acrobat PDF (156KB)
Copyright © Nonlinear Phenomena in Complex Systems. Last updated: October 8, 2007