Control of the growth mode of epitaxial c-axis YBa2Cu3O7-δ thin films by vicinal (001) SrTiO3 substrates

被引：11
作者：
Hu, WF
Zhao, XJ
Peng, W
Wang, TS
Liu, W
Li, L
Lei, C
Chen, YF
Li, L
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] Yanshan Univ, Dept Mat Sci, Qinhuangdao 066004, Peoples R China
[4] Ningxia Univ, Dept Phys, Yinchuan 750021, Peoples R China
来源：
JOURNAL OF CRYSTAL GROWTH | 2001年 / 231卷 / 04期
基金：
中国国家自然科学基金;
关键词：
surface structure; laser epitaxy; cuprates; perovskites; superconducting materials;
D O I：
10.1016/S0022-0248(01)01508-1
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
C-axis YBa2Cu3O7-delta (YBCO) thin films have been grown epitaxially in the step-flow mode with the increase of vicinal angle of the SrTiO3 substrates by pulsed laser deposition. However surface hollows/cracks occurred with increasing angle, which disrupted the smoothness of the film surfaces. B reducing the oxygenate pressure during the tetragonal-orthogonal structural phase transition, the YBCO films with smooth surface was formed, but the films are superconducting at 60 K. These films have good metallic property hence they can be employed as electrodes for ferroelectric hetero structures. (C) 2001 Elsevier Science BN. All rights reserved.
引用
收藏
页码：493 / 497
页数：5
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