The [113] growth direction of YBa2Cu3O7-x thin films

被引：7

作者：

Brecht, E ^{[1
]}

Fromknecht, R ^{[1
]}

Geerk, J ^{[1
]}

Meyer, O ^{[1
]}

Reiner, J ^{[1
]}

Rodewald, M ^{[1
]}

Schneider, R ^{[1
]}

Linker, G ^{[1
]}

机构：

[1] TH DARMSTADT,FACHBEREICH MAT WISSENSCH,D-64287 DARMSTADT,GERMANY

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 102卷 / 12期

关键词：

high-T-c superconductors; thin films; epitaxy;

D O I：

10.1016/S0038-1098(97)00128-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Thin films of YBa2Cu3O7-x were deposited on (1 1 1) oriented SrTiO3 substrates at different substrate temperatures, T-s, in the range between 520 degrees C and 820 degrees C. In the whole T-s range the films grow epitaxially [1 1 3] oriented. At low T-s the growth is homogeneously strained pseudomorphic with narrow mosaic distributions down to 0.04 degrees. Broad mosaic distributions of about 1 degrees are observed at the highest T-s values probably due to strain release by defect incorporation. In the intermediate T-s range internal strain is formed in the films. The oxygenation of the films and thus the appearance of superconductivity with maximum T-s values of 84 K observed at the highest T-s values appears to be strain controlled. (C) 1997 Elsevier Science Ltd.

引用

页码：849 / 853

页数：5

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