title: Wulff construction for alloy nanoparticles.
abstract: The Wulff construction is an invaluable tool to understand and predict the shape of nanoparticles. We demonstrate here that this venerable model, which gives a size-independent thermodynamic shape, becomes size dependent in the nanoscale regime for an alloy and that the infinite reservoir approximation breaks down. The improvements in structure and energetic modeling have wide-ranging implications both in areas where energetics govern (e.g., nucleation and growth) and where the surface composition is important (e.g., heterogeneous catalysis).
authors: Department of Chemistry, Northwestern University, Evanston, Illinois 60201, United States. emilieringe@u.northwestern.edu
authors: E
authors: E
authors: Ringe
authors: R P
authors: RP
authors: Van Duyne
authors: L D
authors: LD
authors: Marks