Magnetic Shielding Effect of Ba_2YCu_3O_<7-δ> Plates

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概要

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• The magnetic shielding effect of Ba_2YCu_3O_<7-δ>, Cu and Fe-Ni plates was examined as a function of the frequency of applied ac magnetic field using magnetic heads. The effect of Ba_2YCu_3O_<7-δ> plates was superior to that of Cu and Fe-Ni plates in the low-frequency (<5 kHz) region at 77 K, while in the high-frequency (>10 kHz) region, the effect of Ba_2YCu_3O_<7-δ> plates was almost the same or slightly inferior to that of Cu plates. The shielding effect of Ba_2YCu_3O_<7-δ> plates was strongly affected by the micro cracks and porosity of the samples. The magnetic shielding effect of Ba_2YCu_3O_<7-δ> plates decreased rapidly with applied dc magnetic field, while the effect of Cu and Fe-Ni plates did not change with the application of dc magnetic field.

• 社団法人応用物理学会の論文
• 1990-11-20

著者

• Okuyama Katsuro

  Electronic And Information Engineering Faculty Of Engineering Yamagata University

• OHSHIMA Shigetoshi

  Electronic and Information Engineering, Faculty of Engineering, Yamagata University

• Ohshima Shigetoshi

  Electronic And Information Engineering Faculty Of Engineering Yamagata University

関連論文

• Magnetic Shielding Effect of Ba_2YCu_3O_ Plates

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