Phase compatibility and superconductivity of Y-Ba-Cu-O compounds

被引：0

作者：

Wadayama, Yoshihide ^{[1
]}

Kudo, Kotaro ^{[1
]}

Nagata, Akihiko ^{[1
]}

Ikeda, Keisuke ^{[1
]}

Hanada, Shuji ^{[1
]}

Izumi, Osamu ^{[1
]}

机构：

[1] Tohoku Univ, Japan

来源：

Japanese Journal of Applied Physics, Part 2: Letters | 1988年 / 27卷 / 07期

关键词：

Ceramic Materials - Oxides - Superconductivity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Superconducting properties of Y-Ba-Cu-O compounds were investigated in relation to precipitation of second phases. Contour lines of Jc, Tc and diamagnetic signal intensities were presented in the YO1.5-BaO-CuO system. These superconducting properties decreased steeply with BaCuO2 precipitation, and the maximum Jc was obtained in the yttrium-rich composition of Y1.2Ba2Cu3O7-y. It is considered, therefore, that the BaCuO2 precipitating around the YBa2Cu3O7-y grains interrupt the superconducting current pass at the grain boundary. Yttrium-rich composition, which inhibits BaCuO2 precipitation, is effective for the preparation of the high-Jc sample.

引用

共 50 条

[1] PHASE COMPATIBILITY AND SUPERCONDUCTIVITY OF Y-BA-CU-O COMPOUNDS
WADAYAMA, Y
KUDO, K
NAGATA, A
IKEDA, K
HANADA, S
IZUMI, O
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (07): : L1221 - L1224
[2] SUPERCONDUCTIVITY OF MULTIPHASE MIXTURES IN Y-BA-CU-O COMPOUNDS
YAMAYA, K
KODAIRA, K
HIGUCHI, M
ISHIBASHI, T
IDO, M
NOMURA, K
SAMBONGI, T
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (07): : L1095 - L1096
[3] PHASE DEPENDENT SUPERCONDUCTIVITY IN THE Y-BA-CU-O SYSTEM
PRAKASH, OM
VENKATARAMANI, N
BHATIA, SN
AIYAR, R
WALIA, R
SRIVASTAVA, CM
PRAMANA, 1987, 29 (01) : L103 - L106
[4] EFFECT OF POLARIZABLE ATMOSPHERES ON SUPERCONDUCTIVITY OF THE Y-BA-CU-O COMPOUNDS
PANG, D
YANG, Z
CHEN, D
QUAN, MX
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1989, 48 (04): : 355 - 357
[5] SUPERCONDUCTIVITY IN LEAD-CONTAINING Y-BA-CU-O COMPOUNDS
SLEBARSKI, A
CHELKOWSKI, A
NIEWIARA, M
SOLID STATE COMMUNICATIONS, 1991, 79 (07) : 597 - 599
[6] SUPERCONDUCTIVITY IN THE Y-BA-CU-O SYSTEM
GOROCHOV, O
SURYANARAYANAN, R
PANKOWSKA, H
SDERI, M
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1987, 20 (21): : L475 - L479
[7] HIGH-TC SUPERCONDUCTIVITY IN Y-BA-CU-O COMPOUNDS
BHANUMATHI, A
MURTY, SN
FERROELECTRICS, 1989, 94 : 449 - 452
[8] Superconductivity and structure of Y-Ba-Cu-O
Leszczynski, Jan
Jackiewicz, Janusz
Zeszyty Naukowe Politechniki Lodzkiej, Elektryka, 1988, (80): : 187 - 191
[9] SUPERCONDUCTIVITY IN Y-BA-CU-O SYSTEMS
MANDAL, P
PODDAR, A
CHOUDHURY, P
DAS, AN
GHOSH, B
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1987, 20 (23): : L553 - L557
[10] ON THE SUPERCONDUCTIVITY IN THE Y-BA-CU-O SYSTEM
SMRCKOVA, O
SYKOROVA, D
DOMINEC, J
JUREK, K
SMRCKA, L
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 1987, 103 (01): : K33 - +

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