MICROSTRUCTURAL FEATURES AT THE INTERFACE BETWEEN LASER-ABLATED YBA2CU3O7 FILMS AND LAALO3 SUBSTRATES

被引：8

作者：

GUO, LP ^{[1
]}

TIAN, YJ ^{[1
]}

LIU, JZ ^{[1
]}

XU, SF ^{[1
]}

LI, L ^{[1
]}

ZHAO, ZX ^{[1
]}

CHEN, ZH ^{[1
]}

CUI, DF ^{[1
]}

LU, HB ^{[1
]}

ZHOU, YL ^{[1
]}

YANG, GZ ^{[1
]}

机构：

[1] CHINESE ACAD SCI,BEIJING LAB ELECTRON MICROSCOPY,BEIJING 100080,PEOPLES R CHINA

来源：

APPLIED PHYSICS LETTERS | 1995年 / 66卷 / 24期

关键词：

ABLATION; BARIUM OXIDES; COPPER OXIDES; DEPOSITION; INTERFACE STRUCTURE; MICROSTRUCTURE; MORPHOLOGY; PULSED LASERS; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY; YTTRIUM OXIDES;

D O I：

10.1063/1.113756

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The microstructure at the interface between YBa2Cu3O7(YBCO) thin film and (100)LaAlO3 substrate has been investigated by using transmission electron microscopy. It has been observed that two distinct microstructural features existed in the interface: (1) A thin transitional layer of Ba3Al2O6 was frequently observed and the YBCO thin film grown on it showed stacking faults. (2) Sharp interface with no transitional layer was also occasionally observed and the YBCO film grown on it was single crystalline. In rare cases, a low symmetry phase was observed near the surface of the LaAlO3 substrate, however, the distortion caused by the lattice mismatch between this phase and the YBCO did not affect the quality of the YBCO thin film. © 1995, American Institute of Physics. All rights reserved.

引用

页码：3356 / 3358

页数：3

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