SUPPRESSION OF PRECIPITATE FORMATION IN HETEROEPITAXIAL GROWTH OF YBA2CU3O7-DELTA FILM ON MISORIENTED SRTIO3 SUBSTRATES

被引：6
作者：
GONG, JP
KAWASAKI, M
FUJITO, K
TSUCHIYA, R
YOSHIMOTO, M
KOINUMA, H
机构：
[1] TOKYO INST TECHNOL,ENGN MAT RES LAB,4259 NAGATSUTA,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN
[2] PRESTO RES DEV CORP JAPAN,MIDORI KU,YOKOHAMA 227,JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1994年 / 33卷 / 1A期
关键词：
YBA2CU3O7-DELTA; SEGREGATION; PRECIPITATES; JOSEPHSON TUNNEL JUNCTION; MISORIENTED SUBSTRATE;
D O I：
10.1143/JJAP.33.L20
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have investigated the effect of misoriented substrates on precipitate formation in c-axis-oriented YBa2Cu3O7-delta films grown by the pulsed laser deposition technique. The films grown on exact SrTiO3(100) substrates had precipitate densities as high as 10(7)-10(8)/cm2, whereas the films on substrates with surfaces misoriented from (100) by 0.5-degrees-1-degrees had fewer precipitates by two to three orders of magnitude. A film surface of 10(5)/CM2 precipitates can give 90% probability of a precipitate-free practical device size area (10 mum x 10 mum), providing a high possibility of successful fabrication of a Josephson tunnel junction.
引用
收藏
页码：L20 / L23
页数：4
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