Open AccessEffect of microwave cavity Q-value on the threshold of instability and autooscilations
Author(s) -
Quan Shi,
Zheng Jun-Juan,
Qi Wang
Publication year - 2004
Publication title -
wuli xuebao
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.