Study of BaTiO3/YBa2Cu3O7-x heterostructural films grown on (00L)SrTiO3 by pulsed laser deposition

被引：9

作者：

Zhu, AJ

Ma, K

Xiong, XM

Wang, CY

Wu, LS

Mai, ZH

机构：

[1] CHINESE ACAD SCI,CTER CONDENSED MATTER PHYS,BEIJING 100080,PEOPLES R CHINA

[2] NATL LAB SUPERCONDUCT,BEIJING 100080,PEOPLES R CHINA

来源：

JOURNAL OF CRYSTAL GROWTH | 1997年 / 178卷 / 04期

关键词：

ferroelectric films; X-ray diffraction; film structure; domains; morphology;

D O I：

10.1016/S0022-0248(97)00089-4

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Epitaxial double-layer heterostructures of BaTiO3/YBa2Cu3O7-x were grown on (0 0 L)SrTiO3 by pulsed laser deposition. The results show that the YBa2Cu3O7-x films are well c-axis oriented and their T-C is above 85 K, and the BaTiO3 films grown on YBa2Cu3O7-x films have c-axis and/or a-axis orientation under different O-2 pressure. The c-axis lattice constants of (0 0 L)BaTiO3 films decrease slightly with the increase of O-2 pressure and those of (H 0 0)BaTiO3 films remain constant. Both YBa2Cu3O7-x and BaTiO3 films have good crystallinity and epitaxy. During the BaTiO3 film deposition, the mismatch of BaTiO3 layer with YBa2Cu3O7-x layer is dominant. In addition, domains exist in the(H 0 0)BaTiO3 film.

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收藏

页码：479 / 484

页数：6

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