Broadband ferromagnetic resonance measurements of a micromagnetic disk array using a meander-line technique

I. P. Nevirkovets, O. Chernyashevskyy, J. B. Ketterson, V. Metlushko, B. K. Sarma

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

A simple technique involving transmission through a copper-wire meander line is developed to study ferromagnetic resonance (FMR) in magnetic arrays. Using this technique, we carried out FMR measurements on a square array of submicrometer-size Permalloy magnetic disks for an external dc magnetic field parallel to the plane of the array, and found several magnetic excitation modes. The dominant mode obeys the Kittel formula for a plain film. The technique is suitable for studying the collective excitation modes in the magnetic nanoarrays over a broad range of frequencies.

Original languageEnglish (US)
Article number063920
JournalJournal of Applied Physics
Volume104
Issue number6
DOIs
StatePublished - Oct 9 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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