MAGNETIC SHIELDING EFFECT OF BA2YCU3O7-DELTA PLATES

被引：22

作者：

OHSHIMA, S

OKUYAMA, K

机构：

[1] Electronic and Information Engineering, Yamagata University, Yonezawa

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1990年 / 29卷 / 11期

关键词：

MAGNETIC SHIELDING; BA2YCU3O7-DELTA; MEISSNER EFFECT;

D O I：

10.1143/JJAP.29.2403

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic shielding effect of Ba2YCu3O7-delta, Cu and Fe-Ni plates was examined as a function of the frequency of applied ac magnetic field using magnetic heads. The effect of Ba2YCu3O7-delta 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 Ba2YCu3O7-delta plates was almost the same or slightly inferior to that of Cu plates. The shielding effect of Ba2YCu3O7-delta plates was strongly affected by the micro cracks and porosity of the samples. The magnetic shielding effect of Ba2YCu3O7-delta 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.

引用

页码：2403 / 2406

页数：4

共 7 条

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