Microwave radiation from parametrically excited YIG

Michinobu Mino, M. Tsukamoto, K. Fujikawa, Y. Ono

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Microwave radiation from parametrically excited magnons was studied experimentally. Parallel pumping excitations were carried out on a ferromagnetic yttrium iron garnet (YIG). A high sensitivity microwave circuit was used to detect spectra of radiation microwave. At high pumping power, multi-frequency components are observed simultaneously. The spectra depend on static field, or magnetostatic modes. In order to characterize the timeseries of microwave radiation, a correlation dimension is estimated. These results show that a four-magnon scattering is important in a nonlinear relaxation process.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - Mar 2007

Fingerprint

Yttrium
yttrium-iron garnet
Garnets
Iron
Microwaves
microwaves
pumping
Microwave circuits
Magnetostatics
microwave circuits
Relaxation processes
magnetostatics
magnons
Scattering
sensitivity
scattering
excitation

Keywords

  • Nonequilibrium magnon
  • Nonlinear relaxation
  • Parallel pumping

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Microwave radiation from parametrically excited YIG. / Mino, Michinobu; Tsukamoto, M.; Fujikawa, K.; Ono, Y.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 2, 03.2007.

Research output: Contribution to journalArticle

Mino, Michinobu ; Tsukamoto, M. ; Fujikawa, K. ; Ono, Y. / Microwave radiation from parametrically excited YIG. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 310, No. 2 SUPPL. PART 2.
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