Figure 5.

Energy variation during inter-tube sliding of a (6,6)@(11,11) carbon nanotube with a C SI (filled and open squares for sliding in opposite directions). The lines with almost vanishing values (filled circles) at the bottom are for the pristine case of no defects and for a single vacancy on the inner tube.

Tsetseris and Pantelides Nanoscale Research Letters 2011 6:245   doi:10.1186/1556-276X-6-245
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