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Ferromagnetic resonance in periodic particle arrays

S. Jung·B. Watkins·L. Delong·J. B. Ketterson·V. Chandrasekhar
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Abstract

We report measurements of the ferromagnetic resonance (FMR) spectra of arrays of submicron size periodic particle arrays of permalloy produced by electron-beam lithography. In contrast to plane ferromagnetic films, the spectra of the arrays show a number of additional resonance peaks, whose position depends strongly on the orientation of the external magnetic field and the interparticle interaction. Time-dependent micromagnetic simulation of the ac response show that these peaks are associated with coupled exchange and dipolar spin wave modes

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S. Jung, B. Watkins, L. Delong, J. B. Ketterson, V. Chandrasekhar. 2001-09-17. Ferromagnetic resonance in periodic particle arrays. https://doi.org/10.1103/physrevb.66.132401

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