In ferromagnetic metals, the temporal and spatial dependence of the magnetization vector generates spin-dependent electric and magnetic fields. We study spin and charge transport by using the linearalized Boltzmann equation in response to these fields. A generalized spin-diffusion equation is derived and then exactly solved for a nanowire where the spatial dependence of the magnetization is one dimensional. It is found that the relative length scales between the domain-wall width and the spin-diffusion length are important in determining the local electromotive force and the enhanced damping induced by magnetization dynamics.
|Original language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Nov 19 2010|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics