INPLANE EPITAXIAL ALIGNMENT OF YBA2CU3O7-X FILMS GROWN ON SILVER CRYSTALS AND BUFFER LAYERS

被引：76

作者：

BUDAI, JD ^{[1
]}

YOUNG, RT ^{[1
]}

CHAO, BS ^{[1
]}

机构：

[1] ENERGY CONVERS DEVICES INC,TROY,MI 48084

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 15期

关键词：

D O I：

10.1063/1.109565

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Superconducting YBa2Cu3O7-x (YBCO) films were grown by laser ablation on Ag(001), Ag (110), and Ag (111) single-crystal surfaces. X-ray diffraction measurements showed that, in all cases, the films were aligned with specific in-plane epitaxial orientation with respect to the crystallographic axes of the substrate. The observed orientations were consistent with predictions of near-coincident site lattice models of the YBCO-Ag interface. This technique for achieving three-dimensional film alignment was extended to include a Ag epitaxial buffer layer on mica in place of a bulk Ag crystal. In-plane epitaxial alignment on metal substrates and buffer layers has important consequences in practical applications for inhibiting weak-link behavior caused by high-angle grain boundaries.

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页码：1836 / 1838

页数：3

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