Lan Meng, Ying Su, Dechao Geng, Gui Yu, Yunqi Liu, Rui-Fen Dou, Jia-Cai Nie, Lin He
Graphene is only one atom thick and becomes the ultimate thin film to explore membrane physics and mechanics. Here we study hierarchy of graphene wrinkles induced by thermal strain engineering and demonstrate that the wrinkling hierarchy can be accounted for by the wrinklon theory. We derive an equation explaining evolution of wrinkling wavelength with the distance to the edge y observed in our experiment by considering both bending energy and stretching energy of the graphene flakes. Our experiment and analysis indicate that the prefactor k ~ 55 nm in the equation is only determined by the intrinsic parameters of the graphene flakes.
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http://arxiv.org/abs/1306.0171
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