ISOTROPIC JC-B PROPERTIES OF YBA2CU3O7-X THIN-FILMS CONTAINING FINE PRECIPITATES BY METALORGANIC CHEMICAL VAPOR-DEPOSITION

被引：12

作者：

MATSUNO, S ^{[1
]}

KINOUCHI, S ^{[1
]}

EGAWA, K ^{[1
]}

UMEMURA, T ^{[1
]}

UCHIKAWA, F ^{[1
]}

NAKABAYASHI, S ^{[1
]}

机构：

[1] SUPER GM,KITA KU,OSAKA 530,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 13期

关键词：

D O I：

10.1063/1.108639

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Y1Ba2Cu3O7-x superconducting thin films which have isotropic J(c)-B properties were prepared onto SrTiO3 (100) substrates at 700-degrees-C by metalorganic chemical vapor deposition. The J(c) did not depend on directions of the field either perpendicular or parallel to the c axis of the films and the films had a high J(c) of 6.1 X 10(4) and 7.1 X 10(4) A/cm2 at 77 K and 5 T perpendicular and parallel to the c axis, respectively. Transmission electron microscopy observation and x-ray energy dispersive spectroscopy analysis indicated that the films contained many fine Y2BaCuO5-like precipitates with diameter of approximately 10 nm and they were distributed uniformly with the density N(p) as high as 10(23)/m3.

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页码：1556 / 1558

页数：3

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