LASER-ABLATED SRTIO3-YBA2CU3O7-X MULTILAYERS

被引：3

作者：

BOWMAN, RM ^{[1
]}

PEGRUM, CM ^{[1
]}

GOODYEAR, SW ^{[1
]}

EDWARDS, JA ^{[1
]}

机构：

[1] ROYAL SIGNALS & RADAR ESTAB,DIV DRA ELECTR,MALVERN WR14 3PS,WORCS,ENGLAND

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1991年 / 4卷 / 09期

关键词：

D O I：

10.1088/0953-2048/4/9/012

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe the deposition of SrTiO3-YBa2Cu3O7-x multilayers by pulsed laser deposition using a Nd-YAG laser operating at 355 nm. The SrTiO3 and the YBa2Cu3O7-x are deposited under almost identical conditions. The bilayers consist of a <100> MgO substrate with 100 nm of SrTiO3 and 200 nm of YBa2Cu3O7-x deposited on top. The YBCO film has a T(c) of 87 K and J(c) of 9 x 10(6) A cm-2 at 40 K. The trilayers are similar with 100 nm of SrTiO3 separating the two YBCO layers. They exhibit T(c)s of up to 90 K and the J(c) varies from 9 x 10(5) A cm-2 at 77 K to 7.5 x 10(6) A cm-2 at 40 K. X-ray diffraction indicates that the trilayers have > 95% of in-plane material in a-b register with the substrate.

引用

页码：427 / 429

页数：3

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