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张胜利
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期刊论文
Ring formation of single-walled carbon nanotubes: Competition between conformation energy and entropy
PHYSICAL REVIEW B 68, 245419 (2003)，-0001，（）：
We investigate ring formation of single-walled carbon nanotubes theoretically in this paper. The conformation energy of the nanotubes is identified as the curvature elastic energy of a curved graphite and the intertube van der Waals interaction. The entropy of ring nanotubes depends on the total number of carbon atoms. Assuming continuity, we find that the ring single-walled carbon nanotube is stable only when the radius of the tube is valued 6.958
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