FLUX PINNING IN TL-(1223) SUPERCONDUCTOR

被引：16

作者：

AIHARA, K ^{[1
]}

DOI, T ^{[1
]}

SOETA, A ^{[1
]}

TAKEUCHI, S ^{[1
]}

YUASA, T ^{[1
]}

SEIDO, M ^{[1
]}

KAMO, T ^{[1
]}

MATSUDA, S ^{[1
]}

机构：

[1] HITACHI CABLE LTD,ADV RES CTR,TSUCHIURA,IBARAKI 300,JAPAN

来源：

CRYOGENICS | 1992年 / 32卷 / 11期

关键词：

SUPERCONDUCTORS; FLUX PINNING; CRITICAL CURRENT DENSITY;

D O I：

10.1016/0011-2275(92)90003-S

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A strongly pinned (Tl/Pb) - (Sr/Ba) - Ca - Cu - O bulk superconductor of Tl-(1223) phase with a single Tl - O plane has been developed with a magnetic J(c) over 43 000 A CM -2 at 77 K and about 600 000 A cm-2 at 20 K and 1 T. Single crystals of Tl-(1223) have been prepared and used for investigations of magnetization hysteresis anisotropy using SQUID. When the field was applied parallel to the c axis, a high field peak related to inhomogeneous stoichiometry and properties across the specimen was observed in the magnetization hysteresis loop around 1 T at 77 K. Ag-sheathed tapes with Tl-(1223) core were fabricated by the drawing - rolling method. The transport J(c) was 25 000 A cm-2 in the absence of a magnetic field, and stayed approximately 500 A cm-2 up to 8 T at 77 K.

引用

页码：936 / 939

页数：4

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