Influence of step structure on preferred orientation relationships of Ag deposited on Ni(111)

被引：1

作者：

Chatain, Dominique ^{[1
]}

Singh, Saransh ^{[2
,4
]}

Courtois, Blandine ^{[1
]}

Silvent, Jeremie ^{[3
]}

Verzeroli, Elodie ^{[3
]}

Rohrer, Gregory S. ^{[2
]}

De Graef, Marc ^{[2
]}

Wynblatt, Paul ^{[2
]}

机构：

[1] Aix Marseille Univ, CINAM, CNRS, F-13009 Marseille, France

[2] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA

[3] ORSAY Phys, ZAC St Charles N95 3E Ave, F-13710 Fuveau, France

[4] Lawrence Livermore Natl Lab, Livermore, CA 94568 USA

来源：

ACTA MATERIALIA | 2020年 / 200卷

关键词：

Orientation relationships; Hetero-epitaxy; EBSD; Interfacial step structure; Molecular dynamics modeling; 110 TWIST BOUNDARIES; GROWTH; ENERGY; FILMS; AG/NI; HETEROEPITAXY; NICKEL; NI; TEMPERATURE;

D O I：

10.1016/j.actamat.2020.08.082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Previous studies have shown that the orientation relationships which develop in hetero-epitaxy are strongly influenced by the alignment of steps in the deposit with the pre-existing steps of the substrate. In this paper we use a combination of experiments with computer simulations to identify the important influence of substrate step structure on the eventual orientation relationships that develop in the deposit. We have made use of Ag deposited on Ni as it has been used extensively as a model system for the study of hetero-epitaxy. This system displays a large lattice mismatch of 16%. It is shown that on any surface vicinal to Ni(111), which has two possible kinds of (110) steps (A-steps with [1001 ledges and B-steps with [1111 ledges), a Ag deposit adopts a single orientation relationship because only A-steps remain stable in the presence of Ag. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：287 / 296

页数：10

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