Abstract We consider the relaxation processes of parametric excitation of magnons in a microwave resonator. Using the approach of unitary transformation, we calculate the effective amplitude of three-boson terms of Hamiltonian, especially for photon--magnon interaction which is expected to contribute to the resonance linewidth of ferromagnets.
Received: 21 June 2004
Revised: 13 September 2004
Accepted manuscript online:
Fund: Project supported by the Foundation of
State Education Commission of China for Returned Chinese Scholars (Grant
NoLQ2000-2
Cite this article:
Li Liang-Sheng (李粮生), Shi Qing-Fan (史庆藩) Photon-magnon interaction process: a mechanism of resonance linewidths of ferromagnet 2005 Chinese Physics 14 110
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