Effects of Axis direction Extension on Structures and Stabilities of Ni Nanowires
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Graphical Abstract
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Abstract
Atomic structures and stabilities of Ni nanowires are studied by using the generalized simulated annealing method with SuttonChen potential. The initial structure is facecentered cubic 111 structure. The result shows that the length of the supercell strongly affects the structures and stabilities of Ni nanowires. fcc 111 structure， (6， 0)， (6， 3) nanowires， fcc110， transition structure and defect structure are found for different wire lengths. And from the analyses of the binding energy， it is found that (6， 0) nanowires (helical structure) is the most stable form.
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