Microwave radiation of parametrically excited quasiphonons in antiferromagnet FeBO3

Qihua Zhang, Michinobu Mino, Vladimir L. Safonov, Hitoshi Yamazaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Magnetic microwave parametric excitation of magnetoelastic waves in the easy-plane antiferromagnet FeBO3 is studied at room temperature. Measurements were performed at X-band with a perpendicular pumping configuration. We observed the saturation of the microwave absorption of antiferromagnetic resonance above the pumping threshold and simultaneous microwave radiation from the sample at half pump frequency. The radiation spectrum, its intensity dependence on the pumping power and magnetic field are investigated. The obtained results are in agreement with the fact that the radiation appears due to parametrically excited transverse quasiphonons propagating along the "hard" magnetic axis of a crystal.

Original languageEnglish
Pages (from-to)41-44
Number of pages4
JournalJournal of the Physical Society of Japan
Volume69
Issue number1
Publication statusPublished - Jan 2000

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pumping
microwaves
magnetoelastic waves
radiation spectra
microwave absorption
superhigh frequencies
pumps
saturation
thresholds
room temperature
radiation
configurations
magnetic fields
excitation
crystals

Keywords

  • FeBO
  • Magnetoelastic wave
  • Parametric excitation
  • Radiation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Microwave radiation of parametrically excited quasiphonons in antiferromagnet FeBO3. / Zhang, Qihua; Mino, Michinobu; Safonov, Vladimir L.; Yamazaki, Hitoshi.

In: Journal of the Physical Society of Japan, Vol. 69, No. 1, 01.2000, p. 41-44.

Research output: Contribution to journalArticle

Zhang, Qihua ; Mino, Michinobu ; Safonov, Vladimir L. ; Yamazaki, Hitoshi. / Microwave radiation of parametrically excited quasiphonons in antiferromagnet FeBO3. In: Journal of the Physical Society of Japan. 2000 ; Vol. 69, No. 1. pp. 41-44.
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AB - Magnetic microwave parametric excitation of magnetoelastic waves in the easy-plane antiferromagnet FeBO3 is studied at room temperature. Measurements were performed at X-band with a perpendicular pumping configuration. We observed the saturation of the microwave absorption of antiferromagnetic resonance above the pumping threshold and simultaneous microwave radiation from the sample at half pump frequency. The radiation spectrum, its intensity dependence on the pumping power and magnetic field are investigated. The obtained results are in agreement with the fact that the radiation appears due to parametrically excited transverse quasiphonons propagating along the "hard" magnetic axis of a crystal.

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