Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

A Mean-Field Model of Extrinsic Line Broadening in Ferromagnetic Resonance

Published

Author(s)

Robert D. McMichael

Abstract

A model of ferromagnetic resonance in inhomogeneous films is described that includes interactions in a mean-field approximation. The mean-field model yields linewidth values that span the range from intrinsic linewidth for strong interactions to fully broadened local resonance line widths for interactions. For weal inhomogeneity, the mean-field model does not follow the quadratic dependence of broadening on inhomogeneity predicted by the two-magnon model. For weakly interacting regions with strong inhomogeneity, the mean field model fills a gap in the modeling of ferromagnetic resonance spectra where only computationally intensive models have been available previously.
Citation
Journal of Applied Physics

Keywords

ferromagnetic resonance, inhomegeneity, mean-field model

Citation

McMichael, R. (2008), A Mean-Field Model of Extrinsic Line Broadening in Ferromagnetic Resonance, Journal of Applied Physics (Accessed April 16, 2024)
Created October 16, 2008