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Shear displacement controlled periodic wrinkles in hexagonal boron nitride sheet

Wednesday, December 10, 2014 8:25
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The initiation and geometry pattern of wrinkles in a single-layer hexagonal boron nitride sheet induced by in-plane shear displacement are studied. The periodic wrinkles in the central region are parallel to each other with an angle of approximate 50° to the fix edges, and the longitudinal shape of the wrinkle matches the sinusoidal mode shape well. The wrinkle wavelength decreases with an increase in shear loading, while the amplitude is found to initially increase and then become stable. The dependence of the wrinkle geometry on chirality and shear direction is further elucidated. This study theoretically provides a powerful way to produce uniform wrinkles in two-dimensional membranes and to tune their properties in devices.

Yunfang Li

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Source: http://nanochemistry.blogspot.com/2014/12/shear-displacement-controlled-periodic.html

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