ENERGY GAP OF THE "METALLIC" SINGLE-WALLED CARBON NANOTUBES
ENERGY GAP OF THE "METALLIC" SINGLE-WALLED CARBON NANOTUBES
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DOI：
10.1142/s0217984904007335
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发表时间：
2004-06
影响因子：
1.9
通讯作者：
Jiangwei Chen;Zhenghui Yang;Jun Gu
中科院分区：
文献类型：
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作者：
Jiangwei Chen;Zhenghui Yang;Jun Gu
基于Slate-Koster紧束缚计算，我们详细研究了金属单壁碳纳米管(SWNTs)的电子性质。我们的结果表明，对于锯齿形和手性的“金属”单壁碳纳米管，管曲率可以在费米能级上产生能隙，并且这种影响随着半径或手征角的增大而减小。我们的计算结果与实验符合得很好。
Based upon the Slater–Koster tight-binding calculations, we investigated electronic properties of the "metallic" single-walled carbon nanotubes (SWNTs) in detail. Our results show that tube curvature may produce an energy gap at the Fermi level for zigzag and chiral "metallic" SWNTs, and this effect decreases with the increasing of either the radius or the chiral angle. Our calculated results are in good agreement with experiments.