Anisotropic Shock Response of Stone–Wales Defects in Graphene
作者： X. J. Long , F. P. Zhao , H. K. Liu , J. Y. Huang , Y. Lin
关键词: Zigzag 、 Graphene 、 Anisotropy 、 Molecular dynamics 、 Perpendicular 、 Slip (materials science) 、 Nanotechnology 、 Shock response spectrum 、 Molecular physics 、 Rotation 、 Materials science
摘要: Shock response of a basic defect type in graphene, the Stone–Wales (SWD), is investigated with molecular dynamics simulations. compression applied to embedded SWDs along armchair and zigzag directions. Upon shock loading, C–C bonds tend rotate an orientation perpendicular direction. SWD’s shows pronounced anisotropy because structural anisotropies both graphene SWD respect loading direction, overall stronger resistance deformation for armchair-direction loading. For zigzag-direction slip nucleates via formation two pentagons by compressing meta- or other-position atoms together during rotation central bond grows means alternating twisted hexagon. healing, generation, pentagon–heptagon pair separation occur 90° bond, whereas at high strengths, may nuc...
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