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弯曲对扶手椅型石墨烯纳米带电子性质的影响
引用本文:黄琼,童国平. 弯曲对扶手椅型石墨烯纳米带电子性质的影响[J]. 浙江师范大学学报(自然科学版), 2013, 36(1): 83-87
作者姓名:黄琼  童国平
作者单位:浙江师范大学凝聚态物理研究所,浙江金华,321004
摘    要:石墨烯纳米带并不是一个完全平整的结构,而是一个准平面结构.为了研究非平整对石墨烯纳米带电子结构的影响,利用紧束缚方法和轨道杂化理论,研究了弯曲对扶手椅型石墨烯纳米带电子结构的影响.计算结果表明:扶手椅型石墨烯纳米带电子性质与弯曲的程度有关,且在高能部分影响较大;当纳米带的宽度一定时,随着弯曲程度的增加,能带的带隙随之增加.

关 键 词:紧束缚  弯曲  石墨烯纳米带  能带结构

Effect of bending on the electronic properties of armchair graphene nanoribbons
HUANG Qiong , TONG Guoping. Effect of bending on the electronic properties of armchair graphene nanoribbons[J]. Journal of Zhejiang Normal University Natural Sciences, 2013, 36(1): 83-87
Authors:HUANG Qiong    TONG Guoping
Affiliation:( Institute of Condensed Matter Physics, Zhejiang Normal University, Jinhua Zhejiang 321004, China )
Abstract:Graphene sheet had a quasi-planar structure which was not totally flat. To simulate the effect of non-flat by using the tight-binding method and orbital hybridization theory, it was studied the armchair graphene nanoribbons ( A-GNRS ) with bending. The results showed that the bending A-GNRS energy spectra was obviously depend on the curvature, and with certain width, the gap of energy band increased with increase of curvature of the bending A-GNRS.
Keywords:tight-binding  non-flat  graphene nanoribbons  band structure
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