Dynamic
HAADF-STEM Observation of a Single-Atom Chain
as the Transient State of Gold Ultrathin Nanowire Breakdown
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Abstract
Ultrathin
chemically grown gold nanowires undergo irremediable
structural modification under external stimuli. Thanks to dynamic
high-angle annular dark-field imaging, electron-beam-induced damage
was followed, revealing the formation of linear chains of gold atoms
as well as reactive clusters on the side, opening fascinating prospects
for applications in both catalysis and electronic transport