On the frequency and field linewidth conversion of ferromagnetic resonance spectra

Yajun Wei, Shin Liang Chin, Peter Svedlindh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Abstract Both frequency swept and field swept ferromagnetic resonance measurements have been carried out for a number of different samples with negligible, moderate and significant extrinsic frequency independent linewidth contribution to analyze the correlation between the experimentally measured frequency and field linewidths. Contrary to the belief commonly held by many researchers, it is found that the frequency and field linewidth conversion relation does not hold for all cases. Instead it holds only for samples with negligible frequency independent linewidth contributions. For samples with non-negligible frequency independent linewidth contribution, the field linewidth values converted from the measured frequency linewidth are larger than the experimentally measured field linewidth. A close examination of the literature reveals that previously reported results support our findings, with successful conversions related to samples with negligible frequency independent linewidth contributions and unsuccessful conversions related to samples with significant frequency independent linewidth. The findings are important in providing guidance in ferromagnetic resonance linewidth conversions.

Original languageEnglish
Article number335005
Pages (from-to)1-6
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume48
Issue number33
DOIs
Publication statusPublished - 26 Aug 2015
Externally publishedYes

Fingerprint

Ferromagnetic resonance
ferromagnetic resonance
Linewidth
sweep frequency
examination

Keywords

  • Ferromagnetic resonance
  • Gilbert damping
  • Linewidth

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

On the frequency and field linewidth conversion of ferromagnetic resonance spectra. / Wei, Yajun; Liang Chin, Shin; Svedlindh, Peter.

In: Journal of Physics D: Applied Physics, Vol. 48, No. 33, 335005, 26.08.2015, p. 1-6.

Research output: Contribution to journalArticle

Wei, Yajun ; Liang Chin, Shin ; Svedlindh, Peter. / On the frequency and field linewidth conversion of ferromagnetic resonance spectra. In: Journal of Physics D: Applied Physics. 2015 ; Vol. 48, No. 33. pp. 1-6.
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