Dynamic anisotropy of thin Permalloy films measured by use of angle-resolved pulsed inductive microwave magnetometry

Published

May 11, 2005

Author(s)

Michael Schneider, Anthony B. Kos, Thomas J. Silva

Abstract

In this study, angle-resolved pulsed inductive microwave magnetometry is used to investigate the symmetry of the dynamic anisotropy of thin Permalloy films. We measured the dynamic anisotropy field as a function of angle between the easy axis and the applied bias field. We found that, in addition to the expected uniaxial anisotropy, there is a rotatable component of anisotropy. This component of the anisotropy is present only during the dynamics measurements and is attributed to surface effects in the thin films. However, the native oxide layer is not the cause of the rotatable anisotropy components in these films.

Citation

Applied Physics Letters

Volume

86

Issue

202503

Pub Type

Journals

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Keywords

Anisotropy, magnetodynamics, Permalloy

Citation

Schneider, M. , Kos, A. and Silva, T. (2005), Dynamic anisotropy of thin Permalloy films measured by use of angle-resolved pulsed inductive microwave magnetometry, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31815 (Accessed October 20, 2025)