Studies of the microstructures of YBa2Cu3O7-x/La0.67Ca0.33MnO3 hetero structural films

被引：2
作者：
Chen, XM
Liu, CX
Xu, M
Wang, Y
Zhao, YN
Luo, GM
Cui, SF
Mai, ZH
Tang, WH
Gao, J
Jia, CJ
Zheng, WL
Jiang, XM
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
[3] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[4] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 377卷 / 04期
关键词：
microstructure; X-ray; strain; interface;
D O I：
10.1016/S0921-4534(01)01308-9
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The structures of YBa2Cu3O7-x (YBCO) thin films grown on SrTiO3 substrates with and without La0.67Ca0.33MnO3 (LCMO) buffer layer were investigated by high resolution X-ray scattering techniques. All the films are demonstrated to be c-axis oriented. X-ray analysis shows that the introduction of the LCMO buffer does not improve the quality of the YBCO film. It was found that the LCMO and the YBCO monolayers are in different strain states for different samples. In the YBCO/LCMO heterostructure, there exists misorientation between the film and the substrate. The interface roughness of YBCO/LCMO, as well as the surface roughness of all layers was obtained. There exists a non-designed cap layer on the upper surface of the YBCO layer in the YBCO/LCMO heterostructure. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：487 / 493
页数：7
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