Multiplication of threading dislocations in strained metal films under sulfur exposure

被引：10
|
作者：
de la Figuera, J [1 ]
Pohl, K
Schmid, AK
Bartelt, NC
Hrbek, J
Hwang, RQ
机构：
[1] Sandia Natl Labs, Livermore, CA 94550 USA
[2] Brookhaven Natl Lab, Upton, NY 11973 USA
来源：
SURFACE SCIENCE | 1999年 / 433卷
关键词：
copper; dislocation multiplication; ruthenium; scanning tunneling microscopy; strained metal films; sulfur; threading dislocations;
D O I：
10.1016/S0039-6028(99)00060-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Strained thin films often contain ordered networks of misfit dislocations which can determine their chemical and mechanical properties. We consider the reaction of sulfur with two-monolayer films of Cu on Ru(0001). These films contain a network of parallel partial dislocations, separating regions of fcc and hcp stacking, with threading edge dislocations where partial dislocations meet. Sulfur reacts with the threading dislocations and dissociates them. The increase in the threading dislocation density is accommodated by modifying the dislocation network. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：93 / 98
页数：6
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