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Four-Dimensional Probing of Phase-Reaction Dynamics in Au/GaAs Nanowires

Chen, Bin; Fu, Xuewen; Lysevych, Mykhaylo; Tan, Hark Hoe; Jagadish, Chennupati


Nanoeutectic phase reaction covers the fundamental study of a chemical and physical reaction of multiple phases at the nanoscale. Here, we report the direct visualization of phase-reaction dynamics in Au/GaAs nanowires (NWs) using four-dimensional (4D) electron microscopy. The NW phase reactions were initiated with a pump laser pulse, while the following dynamics in the Au/GaAs NW was probed by a precisely time-delayed electron pulse. Single-pulse imaging reveals that the cubic zinc-blende NW...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Nano Letters
DOI: 10.1021/acs.nanolett.8b03870
Access Rights: Open Access


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