Direct Measurement of Subnetwork Exchange Coupling Constant for Ferrimagnets

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概要

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• We show that the subnetwork exchange coupling constant λ of ferrimagnetic films is equal to the slope of the plot of the magnetic field H applied in the film plane versus the in-plane magnetization M⫽at compensation temperature T_<comp>, i.e. H=λM⫽at T_<comp>. This finding enables the direct measurement of λ for ferrimagnetic magneto-optical recording thin films, regardless of the complexity of the two-subnetwork problem. The experimental results are within the range predicted by the mean-field theory.

• 社団法人応用物理学会の論文
• 1994-05-15

著者

• WU Te-ho

  Department of Humanities and Sciences, National Yunlin University of Science and Technology

• Wu T‐h

  Department Of Humanities And Sciences National Yunlin University Of Science And Technology

• Fu Hong

  Optical Sciences Center University Of Arizona

• WU Te-ho

  Optical Sciences Center, University of Arizona

• MANSURIPUR M.

  Optical Sciences Center, University of Arizona

関連論文

• Magnetization Reversal in Patterned Permalloy Single Domain Elements
• Magnetic Domain Pinning in Lithographically Patterned Amorphous Magnetic Layer
• Direct Measurement of Subnetwork Exchange Coupling Constant for Ferrimagnets
• Initial Magnetization Curve and Magnetic Domain Pattern of Co/Pt Multilayered Thin Film

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