Abstract
We calculate the correction to the conductivity of a disordered ferromagnetic metal due to spin-wave-mediated electron-electron interactions. This correction is the generalization of the Altshuler-Aronov correction to spin-wave-mediated interactions. We derive a general expression for the conductivity correction to lowest order in the spin-wave-mediated interaction and for the limit that the exchange splitting is much smaller than the Fermi energy. For a “clean” ferromagnet with , with being the mean time for impurity scattering, we find a correction at temperatures above the spin-wave gap. In the opposite, “dirty” limit, , the correction is a nonmonotonous function of temperature.
- Received 23 April 2014
DOI:https://doi.org/10.1103/PhysRevB.90.024405
©2014 American Physical Society