1 扶手椅型边界显类半导体态:近距悬键电子间准双键形成 2 锯齿型边界显类金属态:等距悬键电子的孤立与极化(狄拉克-费米极化子) 3狄拉克-费米极化子处于费米能级形成杂质态-高群速度,低有效质量,非零自旋,高迁移率,等 4 边界处键相对短且强,导致局域致密钉扎,从而极化近邻的孤立悬键电子。 5 断键导致的局域量子钉扎与极化实为起因。 Dominance of Broken Bonds and Unpaired Nonbonding π-Electrons in the Band Gap Expansion and Edge States Generation in Graphene Nanoribbons http://www3.ntu.edu.sg/home/ecqsun/rtf/JPCC-NGR.pdf Graphene nanoribbon band-gap expansion: Broken-bond-induced edge strain and quantum entrapment http://www3.ntu.edu.sg/home/ecqsun/RTF/Nanoscale-GNR-Eg.pdf