Magnetic After Effect in Ca-doped Yttrium Iron Garnet

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概要

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• Richter type after effects and change of the complex permeability (μ^'-μ^'') with frequency were observed in high purity YIG containing a small amount of Ca^<2+>. Several Richter type after effects with different activation energies were found and peak values of tan δ of these after effects were found to depend strongly on Ca^<2+> content. Dependence of the peak value of tan δ, the induced anisotropy energy and the A.C. resistivity on Ca^<2+> content was studied. From these investigations, we found that the after effects can be classified into three groups, viz., (1) the effect caused by Fe^<2+>, (2) the effect caused by the Fe^<4+> captured by Ca^<2+> and (3) the effect caused by Fe^<4+> which are not captured by Ca^<2+>.

• 社団法人日本物理学会の論文
• 1970-10-05

著者

• Okada Takashi

  Central Res. Inst. Ishihara Sangyo Kaisha Ltd. Kusatsu 525-0025 Jpn

• Okada Takashi

  Central Research Laboratories Nippon Electric Co. Ltd.

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