Abstract
Nanomaterials axe applicable as nanoscale building blocks for electronic, optical, and biological devices. Gold nanowires are useful for biological applications because gold atoms can immobilize organic compound molecules having specific radicals, and also useful for chemical applications because gold atoms can become catalysts for growth of semiconductor nanowires. In the present study, the deformation of gold nanowires of helical multi-shell structures and the fee structures under a tensile external force is investigated by molecular-dynamics simulation. The interaction between gold atoms is calculated using the modified embedded-atom method potential. The Young's moduli of the three nanowire models are obtained, and their structural dependence is discussed.
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