Anisotropy Effects on High Power Antiferromagnetic Resonance

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概要

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• The AFMR frecuuencv shift lco in a uniaxial antiferromasnet at hish power iscalculated within the framework of a random r>hase ar>r>roximation. It is shownthat ,aw can be expressed in terms ofthe number or uniform mode (A .=.o) magnonsand denenerate (A.:0) mannons excited dvnamicallv. The r>resence of theseexcited maxnons results in a shift of the AFMR frectuencv throush chances ofthe anisotropy and demagnetizing fields. In spherical samples the anisotropyinduced shift is nexative, so that the resonance condition for the low frequencyAFMR branch for a fixed resonance frequency shifts towards lower fields.

• 社団法人日本物理学会の論文
• 1981-05-15

著者

• Tanaka Toshijiro

  Department Of Physics University Of California:department Of Physics Kagoshima Prefectural Junior Co

• Tanaka Toshijiro

  Department Of Applied Physics Faculty Of Engineering Osaka University

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