Spin Wave Modes in Ferromagnetic Films

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概要

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• Spin wave modes in a thin ferromagnetic film are discussed by considering the non-uniformity of the film. A simple assumption of a parabolic inhomogeneity in an effective field is shown to give a satisfactory prediction of an actually observed spin wave resonances in thin ferromagnetic films. This assumption also leads to the fact that the spin wave modes are expressed by the solutions of the Weber equation, and in the extreme case of ξ_0^2≫q the solutions become the wave functions of a harmonic oscillator and in the case of ξ_0^2≪q they reduce to the wave functions of a plane wave, where q denotes the number of the modes and ξ_0 denotes the ratio of a film tickness to the degree of inhomogeneity.

• 社団法人日本物理学会の論文
• 1964-01-05

著者

• Hirota E.

  Research Laboratory Wireless Division Matsushita Electric Industrial Co. Ltd.

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