HREM CHARACTERIZATION OF GOLD-CLUSTER STRUCTURES

H.Q. Zhang, M. Han, Q. Wang and G.H. Wang
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H.Q. Zhang: Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
M. Han: Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
Q. Wang: Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
G.H. Wang: Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;

Surface Review and Letters (SRL), 1996, vol. 03, issue 01, 1195-1198

Abstract: High-resolution electron microscope (HREM) and computer simulation are used to investigate structural features of gold clusters produced by the inert-gas condensation method. The results indicate that (i) smaller clusters have multiple-twinned-like structure while those larger than 150 Å in diameter show single-crystal structure; (ii) the former cluster consists of either decahedral or icosahedral form and the atomic planes are not strictly parallel and distances between the planes increase towards the cluster edge; and (iii) grain boundaries between the clusters have twin structures with both long- and short-range orders.

Date: 1996
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DOI: 10.1142/S0218625X96002151

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