An All Sol-Gel Process for the Heteroepitaxial Growth of YBa2Cu3O7-x/LaNiO3/YBa2Cu3O7-x Tri-layer

被引：2

作者：

Wu, Chuanbao ^{[1
]}

Zhao, Gaoyang ^{[1
]}

Fang, Po ^{[1
]}

Wang, Shasha ^{[1
]}

Zhang, Ye ^{[1
]}

机构：

[1] Xian Univ Technol, Dept Mat Phys & Chem, Xian 710048, Peoples R China

来源：

COATINGS | 2017年 / 7卷 / 05期

关键词：

sol-gel; HRTEM; superconductor; heteroepitaxy; tri-layer; LANIO3; THIN-FILMS; JOSEPHSON; YBA2CU3O7-X; STABILITY; JUNCTIONS; BARRIER;

D O I：

10.3390/coatings7050062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The preparation of a YBa2Cu3O7 (x)/LaNiO3/YBa2Cu3O7-x sandwich structured film on a LaAlO3 (100) substrate by a sol-gel method was investigated. YBa2Cu3O7-x/LaNiO3/YBa2Cu3O7-x tri-layer heterostructures with different epitaxial characteristics can be deposited by controlling the heat treatment temperature. X-ray diffraction and transmission electron microscopy results show that the bottom YBCO film grows epitaxially on the LaAlO3 substrate along the c axis, and that this epitaxial growth trend is extended to the subsequently deposited LaNiO3 film. For this reason, the LaNiO3 film also grows epitaxially along the c axis. Furthermore, this epitaxial growth trend is extended to the top YBa2Cu3O7-x film, yielding YBa2Cu3O7-x/LaNiO3/YBa2Cu3O7-x tri-layer heterostructures with epitaxial growth characteristics along the c axis, which enables both the bottom and top YBa2Cu3O7-x layers to possess superconducting abilities.

引用

页数：8

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