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High frequency, small signal MH loops of ferromagnetic thin films
1Department of Electrical Engineering, 453 Anderson Hall, The University of Kentucky, Lexington, Kentucky 40506-0046, USA. grimes@engr.uky.edu
Journal of Applied Physics
|April 20, 2002
Abstract:
A method is presented for transforming the high frequency bias susceptibility measurements of ferromagnetic thin films into the form of a MH loop with, depending upon the measurement geometry, the y-axis zero crossing giving a measure of the coercive force or anisotropy field. The loops provide a measure of the quantitative and qualitative high frequency switching properties of ferromagnetic thin films.