Abstract

<p>(A) Breaking a graphene sheet of thickness <i>t</i> over a trench of width <i>L</i> and depth <i>h</i>. The graphene shape is estimated by balancing the bending energy <i>E</i><sub><i>B</i></sub> up to the point <i>p</i> with the surface binding energy <i>E</i><sub><i>S</i></sub>, leading to a nanogap width <i>w</i>. (B) Expected nanogap width <i>w</i> as a function of suspended length <i>L</i> for two values of surface adhesion energy <i>ε</i> (see text).</p

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