姜莉锋;徐雷;张军;

• 1:新疆大学物理科学与技术学院

摘要(Abstract)：

扶手型石墨烯纳米带,由于其纳米带宽度的差异,可以分为金属型与半导体型.本文主要研究非均匀电势和子晶格势作用下扶手型石墨烯纳米带的电子特性.我们发现当只有子晶格势作用时,不同类型的扶手型石墨烯纳米带的能隙随子晶格势的增大基本呈线性增长.然而不同类型的扶手型石墨烯纳米带的能隙随非均匀电势的增大却呈现出不同的变化趋势.对于金属型的情况,在非均匀电势和子晶格势共同调控下,可以实现能隙的打开与闭合.最后,在纳米带上施加垂直磁场,两端电导表现出有趣的量子演化行为.

关键词(KeyWords)： 非均匀电势;子晶格势;扶手型石墨烯纳米带

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(11404276);国家自然科学基金(11564038);; 新疆大学博士研究生基金(BS130112)

作者(Authors): 姜莉锋;徐雷;张军;

DOI: 10.13568/j.cnki.651094.2018.03.009

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