Growth of single-domain (Sm0.5Eu0.5)Ba2Cu3O7-δ with high Tc and Jc by employing a thermal gradient

被引：51

作者：

Hu, A ^{[1
]}

Sakai, N ^{[1
]}

Murakami, M ^{[1
]}

机构：

[1] Int Superconduct Technol Ctr, Superconduct Res Lab, Minato Ku, Tokyo 105, Japan

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 17期

关键词：

D O I：

10.1063/1.1367305

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bulk (Sm0.5Eu0.5)Ba2Cu3O7-delta superconductors were grown isothermally and with a vertical thermal gradient of -5 degreesC/cm in air. The crystals grown at a large growth rate under the thermal gradient exhibited a high-T-c value of 95 K and a plateau in the J(c)-B curve at 1-4 T at 77 K with postannealing in Ar. We found that the substitution of Ba by rare-earth (RE) elements could be suppressed with a large growth rate. The narrow range of RE-Ba solid solution was attributed to the fast crystallization rate of RE1+xBa2-xCu3O7-delta with low-x values. (C) 2001 American Institute of Physics.

引用

页码：2539 / 2541

页数：3

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