MICROSTRUCTURE AND PROPERTIES OF YBA2CU3O7-DELTA THIN-FILMS WITH BAO PRECIPITATES

被引：17

作者：

TIAN, YJ ^{[1
]}

GUO, LP ^{[1
]}

LI, L ^{[1
]}

ZHOU, YQ ^{[1
]}

YANG, Y ^{[1
]}

ZHAO, ZX ^{[1
]}

XU, SF ^{[1
]}

LU, HB ^{[1
]}

ZHOU, YL ^{[1
]}

CHEN, ZH ^{[1
]}

CUI, DF ^{[1
]}

YANG, GZ ^{[1
]}

机构：

[1] CHINESE ACAD SCI,INST PHYS,BEIJING 100080,PEOPLES R CHINA

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 02期

关键词：

D O I：

10.1063/1.112639

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

BaO precipitates with sizes between 10-100 nm in laser ablated YBa2Cu3O7-delta (YBCO) thin films on Y-stabilized Zirconia substrates have been identified by x-ray diffraction and transmission electron microscopy. The precipitates exhibit equiaxed shapes and grow epitaxially inside and on the surface of the YBCO films, with (001)BaO plane parallel to the a,b plane of YBCO. Some of these smaller precipitates and BaO/YBCO boundaries probably provide potential pinning sites for magnetic flux lines, which might contribute to the observed increase of critical current density with magnetic field B under B less-than-or-equal-to 500 G in the case of B perpendicular to the c axis of the film.

引用

页码：234 / 236

页数：3

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