期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 40, 期 12, 页码 3767-3770出版社
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/40/12/031
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The influence of the crystalline structure of nanowires on their thermal instability has been systematically investigated. Both poly- and single-crystalline (SC) cylindrical nanowires with diameters 87 and 132 nm transform into chains of spheres during annealing at 600 - 700 degrees C. SC nanowires oriented along the [110] direction are found to be more stable, i.e. longer annealing times are needed for their complete transformation into sphere chains. Sphere size and spacing between adjacent spheres formed after decay are controlled by the crystallinity of the wires and both are larger in the case of SC nanowires.
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