Microwave radiation from parametrically excited YIG

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

Research output: Contribution to journalArticlepeer-review

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
Pages (from-to)e549-e551
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - Mar 1 2007

Keywords

  • Nonequilibrium magnon
  • Nonlinear relaxation
  • Parallel pumping

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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