Antiferromagnetic Resonance and Spin-Wave Instabilities at Spin-Flop Critical Field in C2H5NH3)2CuCl4

Jun Shi; Hitoshi Yamazaki; Michinobu Mino

doi:10.1143/JPSJ.57.3580

Antiferromagnetic Resonance and Spin-Wave Instabilities at Spin-Flop Critical Field in C₂H₅NH₃)₂CuCl₄

Jun Shi, Hitoshi Yamazaki, Michinobu Mino

Institute for Global Human Resource Development

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Antiferromagnetic resonance and parametric excitation of spin-waves at spin-flop critical field in C₂H₅NH₃)₂CuCl₄ are studied by perpendicular-pumping technique. Nonlinear absorption which is attributed to the first-order Suhl instability is observed at twice the frequency of the spin-flop critical field resonance. Power dependence of the imaginary part of the susceptibility, x” shows the existence of the second threshold which indicates unstable growth of second group of magnon modes.

Original language	English
Pages (from-to)	3580-3586
Number of pages	7
Journal	journal of the physical society of japan
Volume	57
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.57.3580
Publication status	Published - Jan 1 1988

ASJC Scopus subject areas

Physics and Astronomy(all)

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N2 - Antiferromagnetic resonance and parametric excitation of spin-waves at spin-flop critical field in C2H5NH3)2CuCl4 are studied by perpendicular-pumping technique. Nonlinear absorption which is attributed to the first-order Suhl instability is observed at twice the frequency of the spin-flop critical field resonance. Power dependence of the imaginary part of the susceptibility, x” shows the existence of the second threshold which indicates unstable growth of second group of magnon modes.

AB - Antiferromagnetic resonance and parametric excitation of spin-waves at spin-flop critical field in C2H5NH3)2CuCl4 are studied by perpendicular-pumping technique. Nonlinear absorption which is attributed to the first-order Suhl instability is observed at twice the frequency of the spin-flop critical field resonance. Power dependence of the imaginary part of the susceptibility, x” shows the existence of the second threshold which indicates unstable growth of second group of magnon modes.

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Antiferromagnetic Resonance and Spin-Wave Instabilities at Spin-Flop Critical Field in C₂H₅NH₃)₂CuCl₄

Abstract

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