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

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Author(s): Michael Schneider; Anthony B. Kos; Thomas J. Silva;
Title: Dynamic anisotropy of thin Permalloy films measured by use of angle-resolved pulsed inductive microwave magnetometry
Published: May 11, 2005
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
Pages: pp. 202503/1 - 202503/3
Keywords: Anisotropy;magnetodynamics;Permalloy
Research Areas: Electromagnetics
PDF version: PDF Document Click here to retrieve PDF version of paper (146KB)