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15 papers · 1 filter
Vortex-lattice pinning in two-component Bose-Einstein condensates
M. P. Mink, C. Morais Smith, R. A. Duine
We investigate the vortex-lattice structure for single- and two-component Bose-Einstein condensates in the presence of an optical lattice, which acts as a pinning potential for the…
Effects of non-adiabaticity on the voltage generated by a moving domain wall
R. A. Duine
We determine the voltage generated by a field-driven domain wall, taking into account non-adiabatic corrections to the motive force induced by the time-dependent spin Berry phase.…
Creep of current-driven domain-wall lines: intrinsic versus extrinsic pinning
R. A. Duine, C. Morais Smith
We present a model for current-driven motion of a magnetic domain-wall line, in which the dynamics of the domain wall is equivalent to that of an overdamped vortex line in an aniso…
Current-Induced Torques in Magnetic Metals: Beyond Spin Transfer
P. M. Haney, R. A. Duine, A. S. Nunez +1
Current-induced torques on ferromagnetic nanoparticles and on domain walls in ferromagnetic nanowires are normally understood in terms of transfer of conserved spin angular momentu…
Spin pumping by a field-driven domain wall
R. A. Duine
We calculate the charge current in a metallic ferromagnet to first order in the time derivative of the magnetization direction. Irrespective of the microscopic details, the result…
Effective temperature and Gilbert damping of a current-driven localized spin
A. S. Nunez, R. A. Duine
Starting from a model that consists of a semiclassical spin coupled to two leads we present a microscopic derivation of the Langevin equation for the direction of the spin. For slo…