Abstract
The effect of impurity scattering on the damping of spin waves in itinerant ferromagnets at zero temperature is studied. Spin-independent impurity scattering leads to a damping term proportional to ${q}^{4}$, and spin-flipping impurity scattering processes lead to an additional ${q}^{2}$ damping term. This, in light of the temperature-independent, ${q}^{4}$ spin-wave linewidth observed recently, indicates the significance of intrinsic spin-wave broadening mechanisms. Comparison of estimates made for the damping term with experimental results for the spin-wave linewidth strongly suggests that diffusive relaxation is the relevant mechanism for spin-wave broadening when only spin-independent scattering processes are present.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
