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Communication: Diverse nanoscale cluster dynamics: Diffusion of 2D epitaxial clusters

TitleCommunication: Diverse nanoscale cluster dynamics: Diffusion of 2D epitaxial clusters
Publication TypeJournal Article
Year of Publication2017
AuthorsLai, KC, Evans, JW, Liu, DJ
JournalJournal of Chemical Physics
Volume147
Pagination201101
Date Published11
Type of ArticleArticle
ISBN Number0021-9606
Accession NumberWOS:000416842200001
Keywordschemistry, evolution, island diffusion, metal 100 surfaces, mobility, nanoclusters, nanoparticles, nanostructures, physics, shape changes, simulations, step
Abstract

sizes N-p = L-2 and L(L+1) for integer L = 3,4,... (with unique square or near-square ground state shapes), and also for N-p+3, N-p+4,.... In contrast, fast facile nucleation-free diffusion displaying strong size scaling beta approximate to 2.5 occurs for sizes N-p+1 and N-p+2. D-N versus N oscillates strongly between the slowest branch (for N-p+3) and the fastest branch (for N-p+1). All branches merge for N = O(10(2)), but macroscale behavior is only achieved for much larger N = O(10(3)). This analysis reveals the unprecedented diversity of behavior on the nanoscale. Published by AIP Publishing.

DOI10.1063/1.5008424
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Chemical Physics