Epitaxy of Pt thin films on (001)MgO .2. Orientation evolution from nucleation through coalescence

被引：30

作者：

McIntyre, PC ^{[1
]}

Maggiore, CJ ^{[1
]}

Nastasi, M ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB,DIV MAT SCI & TECHNOL,LOS ALAMOS,NM 87545

来源：

ACTA MATERIALIA | 1997年 / 45卷 / 02期

基金：

美国能源部;

关键词：

D O I：

10.1016/S1359-6454(96)00183-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Orientation selection and microstructural evolution of thin platinum films deposited on to (001)MgO substrates are examined experimentally. The Pt/MgO system is an example of epitaxy in the absence of strong chemical interactions between film and substrate. Platinum films grow in the Volmer-Weber mode of epitaxy, and more than one epitaxial film orientation is possible on (001)MgO depending upon the deposition conditions. Experimental observations of orientation selection during film growth are explained based on film/substrate interface energy and film surface energy minimization. The results indicate that the final microstructure is controlled by grain boundary motion during and after coalescence of the island films.

引用

页码：879 / 887

页数：9

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