Optical measurement of magnetic anisotropy in thin garnet films

P.J. Rijnierse, H. Logmans, R. Metselaar, W.T. Stacy

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Abstract

This paper describes an improved optical method for measuring locally the cubic and uniaxial magnetic anisotropy fields in thin garnet films. The derivative of the in-plane component of the magnetization is measured, using a double modulation technique which combines polarization modulation with field modulation. A simple graphical method is devised to calculateH k andH u from the extrema in this derivative curve. The results of measurements on magnetic garnet films obtained by different methods are compared. Local measurements of the anisotropy induced by substrate facet strain are described.
Original languageEnglish
Pages (from-to)143-150
JournalApplied Physics
Volume8
Issue number2
DOIs
Publication statusPublished - 1975

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    Rijnierse, P. J., Logmans, H., Metselaar, R., & Stacy, W. T. (1975). Optical measurement of magnetic anisotropy in thin garnet films. Applied Physics, 8(2), 143-150. https://doi.org/10.1007/BF00896031