Edge-Stress-Induced Warping of Graphene Sheets and Nanoribbons Export

@article{citeulike:3920572, abstract = {We show that edge stresses introduce intrinsic ripples in freestanding graphene sheets even in the absence of any thermal effects. Compressive edge stresses along zigzag and armchair edges of the sheet cause out-of-plane warping to attain several degenerate mode shapes. Based on elastic plate theory, we identify scaling laws for the amplitude and penetration depth of edge ripples as a function of wavelength. We also demonstrate that edge stresses can lead to twisting and scrolling of nanoribbons as seen in experiments. Our results underscore the importance of accounting for edge stresses in thermal theories and electronic structure calculations for freestanding graphene sheets.}, author = {Shenoy, V. B. and Reddy, C. D. and Ramasubramaniam, A. and Zhang, Y. W.}, citeulike-article-id = {3920572}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000101000024245501000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v101/e245501}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevLett.101.245501}, doi = {10.1103/PhysRevLett.101.245501}, journal = {Physical Review Letters}, keywords = {buckling-pattern, graphene, graphene-nanoribbon, morphology}, number = {24}, pages = {245501+}, posted-at = {2009-01-30 04:36:32}, priority = {2}, publisher = {APS}, title = {Edge-Stress-Induced Warping of Graphene Sheets and Nanoribbons}, url = {http://dx.doi.org/10.1103/PhysRevLett.101.245501}, volume = {101}, year = {2008} }

TY - JOUR ID - citeulike:3920572 L3 - citeulike-article-id:3920572 N2 - We show that edge stresses introduce intrinsic ripples in freestanding graphene sheets even in the absence of any thermal effects. Compressive edge stresses along zigzag and armchair edges of the sheet cause out-of-plane warping to attain several degenerate mode shapes. Based on elastic plate theory, we identify scaling laws for the amplitude and penetration depth of edge ripples as a function of wavelength. We also demonstrate that edge stresses can lead to twisting and scrolling of nanoribbons as seen in experiments. Our results underscore the importance of accounting for edge stresses in thermal theories and electronic structure calculations for freestanding graphene sheets. IS - 24 JF - Physical Review Letters TI - Edge-Stress-Induced Warping of Graphene Sheets and Nanoribbons PB - APS VL - 101 SP - 245501 KW - buckling-pattern KW - graphene KW - graphene-nanoribbon KW - morphology AU - Shenoy, VB AU - Reddy, CD AU - Ramasubramaniam, A AU - Zhang, YW PY - 2008/// UR - http://dx.doi.org/10.1103/PhysRevLett.101.245501 ER -