How the crystal structure and phase segregation of Au–Fe alloy nanoparticles are ruled by the molar fraction and size. Issue 35 (23rd August 2018)

• Record Type: Journal Article
• Authors: Tymoczko, Anna; Kamp, Marius; Prymak, Oleg; Rehbock, Christoph; Jakobi, Jurij; Schürmann, Ulrich; Kienle, Lorenz; Barcikowski, Stephan
• Is Part Of: Nanoscale. Volume 10:Issue 35(2018)
• Page Start: 16434
• Page End: 16437
• Publication Date: 2018-08-23
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c8nr03962c
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : An ultrastructure of Au–Fe alloy nanoparticles is predefined by the Au : Fe target composition under certain size restrictions as predicted by theoretical modeling. Abstract : The application of an Au–Fe nanoalloy is determined by its internal phase structure. Our experimental and theoretical findings explain how the prevalence of either a core–shell or a disordered solid solution structure is ruled by the target composition and the particle diameter. Furthermore, we found metastable phases not predefined by the bulk phase diagram.