期刊
APPLIED PHYSICS LETTERS
卷 100, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3695332
关键词
-
资金
- U.S. Army Research Laboratory
- A.S. Army Research Office under the Multi University Research Initiative MURI [W911NF-11-1-0353]
Core-shelled multimetallic nanoparticles have unique catalytic properties compared to their single-element counterparts. Due to the different lattice parameters of the core and shell, the strain field is built up at the interface between the two phases. As for thin films, a formation of misfit and threading dislocations is an approach to release interface strain. However, for two-phase nanoparticles especially when their sizes are at nanometer scale, their dislocation formation in the volume remains to be investigated owing to the large surface-to-volume ratio. Here, we confirmed the existence of dislocations in the Au-FePt core-shelled nanoparticles of sizes less than 10 urn. It is suggested that the different atom sizes of the core and the shell materials are likely to be a key factor to generate and lock dislocations inside the nanoparticles. (C) 2012 American Institute of Physics.[http://dx.doi.org/10.1063/1.3695332]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据