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.

PUBLICATIONS

Ferromagnetic Resonance Linewidth Models for Perpendicular Media

Published

Author(s)

Robert D. McMichael

Abstract

Ferromagnetic resonance linewidth in pendicular recording media is modeled with inhomogeneous uniaxial anisotropy field Hu and with tilting of the easy axes from the film normal. The linewidth is calculated using both a local resonance model and a classical equivalent of the two-magnon model. Linewidth due to Hu variations and linewidth due to easy axis tilting are shown to produce very different angular dependence, and when the two-magnon models are valid, the linewidth is also shown to depend on inter-granular exchange coupling.
Citation
Journal of Applied Physics
Volume
95
Issue
No. 11
Pub Type
Journals

Keywords

angular dependence, ferromagnetic resonance, inhomogeneous uniaxial anisotropy, two-magnon models

Citation

McMichael, R. (2004), Ferromagnetic Resonance Linewidth Models for Perpendicular Media, Journal of Applied Physics (Accessed April 3, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created June 1, 2004, Updated February 17, 2017