CATHODELUMINESCENCE FROM MGO SUBSTRATES WITH YBACUO SUPERCONDUCTING EPITAXIAL THIN-FILMS

被引：1

作者：

FUJIWARA, Y

HIRATA, S

IYORI, M

KOBAYASHI, T

机构：

[1] Department of Electrical Engineering, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka, 560

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 74卷 / 07期

关键词：

D O I：

10.1016/0038-1098(90)90693-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cathodeluminescence (CL) measurements have been performed in MgO substrates with YBaCuO superconducting epitaxial thin films. The luminescence is dominated by the well-known blue emission from the MgO substrate excited through the film. In the CL image, many bright streaks and spots are observed, indicating non-uniform distribution of defects in the MgO substrate. The peak position of the blue emission observed in the anomalous regions is partially or completely shifted to short wavelength side by about 30 nm compared with that of naked MgO substrates. The origin of the peak wavelength shift has been examined and discussed. © 1990.

引用

页码：641 / 644

页数：4

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