MULTILAYER YBA2CU3OX-SRTIO3-YBA2CU3OX FILMS FOR INSULATING CROSSOVERS

被引：90

作者：

KINGSTON, JJ

WELLSTOOD, FC

LERCH, P

MIKLICH, AH

CLARKE, J

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,CTR ADV MAT,LIVERMORE,CA 94550

[2] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV CHEM SCI,LIVERMORE,CA 94550

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 02期

关键词：

D O I：

10.1063/1.103281

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe our procedure for fabricating YBa2Cu 3Ox-SrTiO3-YBa2Cu3O x thin-film trilayer structures. Each film is grown in situ by excimer laser deposition onto a heated (100)MgO substrate. The geometrical configuration of each layer is defined by a metal mask; the vacuum chamber is opened between depositions to allow the targets and masks to be changed. The lower and upper YBa2Cu3Ox films in the best trilayer structure had transition widths of 1 and 3 K (10-90%), respectively, and transition temperatures (zero resistance) of 87 K. The resistance between the YBa2Cu3Ox films at 77 K was 108 Ω for an overlapping area of 0.2 mm2, corresponding to a SrTiO3 resistivity of 4×109 Ω cm.

引用

页码：189 / 191

页数：3

共 8 条

[1] DIRECT PREPARATION OF HIGH-TC-SUPERCONDUCTING FILMS BY LASER ABLATION [J].