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Publication Citation: Finite coplanar waveguide width effects in pulsed inductive microwave magnetometry

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Author(s): Michael Schneider; Anthony B. Kos; Thomas J. Silva;
Title: Finite coplanar waveguide width effects in pulsed inductive microwave magnetometry
Published: July 12, 2004
Abstract: The effect of finite coplanar waveguide (CPW) width on the measurement of the resonance frequency in thin ferromagnetic films has been characterized for pulsed inductive microwave magnetometry. A shift in resonant frequency is a linear function of the ratio of sample thickness to CPW width. The proportionality constant is experimentally determined to be 0.74 ± 0.1 times the saturation magnetization of the film. The frequency shift may be modeled as arising from an effective magnetic-anisotropy field.
Citation: Applied Physics Letters
Volume: 85
Issue: 2
Pages: pp. 254 - 256
Keywords: ferromagnetic materials;magnetic anisotropy;magnetic thin films;Permalloy
Research Areas: Electromagnetics
PDF version: PDF Document Click here to retrieve PDF version of paper (105KB)