Surface-segregation-induced phase separation in epitaxial Au/Co nanoparticles: Formation and stability of core-shell structures

We have studied formation and stability of core-shell structures in epitaxial Au/Co nanoparticles (NPs) by using atomic-resolution scanning transmission electron microscopy. As the particle size reduces, number of NPs having Au-shell increases and their frequency of occurrence reached 65%. Au segreg...

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Bibliographic Details
Main Authors: Kazuhisa Sato, Yuta Matsushima, Toyohiko J. Konno
Format: Article
Language:English
Published: AIP Publishing LLC 2017-06-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4986905