ENHANCED FLUX PINNING BY PHASE-DECOMPOSITION IN Y-BA-CU-O

被引：102

作者：

JIN, S

TIEFEL, TH

NAKAHARA, S

GRAEBNER, JE

OBRYAN, HM

FASTNACHT, RA

KAMMLOTT, GW

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 13期

关键词：

D O I：

10.1063/1.103335

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Significantly improved flux pinning has been achieved in bulk YBa 2Cu3O7-δ superconductor ("123" compound) containing fine-scale defects (<∼50 Å thick). The measured Jc intragrain of ∼105 A/cm2 at 77 K, H=0.9 T is about ten times higher than the typical values for bulk Y-Ba-Cu-O. The improved structure was produced by rapid decomposition at 920°C of the YBa2Cu4O8 ("124") lead to a commercially viable processing technique for flux-pinning precursor. This new and simple processing route could enhancement in bulk Y-Ba-Cu-O.

引用

页码：1287 / 1289

页数：3

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