Effect of microwave cavity Q-value on the threshold of instability and autooscilations | Zendy

Qingfan Shi | Zendy; Zheng Jun-Juan | Zendy; Wang Qi | Zendy

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Effect of microwave cavity Q-value on the threshold of instability and autooscilations

Author(s) -

Qingfan Shi,

Zheng Jun-Juan,

Wang Qi

Publication year - 2004

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.53.3535

Subject(s) - magnon , microwave , physics , instability , excited state , nonlinear system , condensed matter physics , microwave cavity , radiation , absorption (acoustics) , quantum electrodynamics , photon , value (mathematics) , atomic physics , quantum mechanics , optics , ferromagnetism , mathematics , statistics

Based on the theory developed by Safonov and Yamazaki in nonlinear radiation damping of parametrically excited spin waves (J. MMM. [STHZ]161[STBZ] (1996) 27 5), we calculate the effect of microwave cavity Q_value on the threshold of instab ility and autooscilations of microwave absorption, considering both processes of nonlinear magnon_magnon interaction and magnon_photon interaction. The resu lt is basically consistent with experimental data.

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