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arXiv 1306.4693cond-mat.mes-hall
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双层石墨烯纳米带的一些性质

Some Properties of Bilayer Graphene Nanoribbons

Maher Ahmed

摘要:

在这项工作中,紧束缚模型计算进行了AA-双层石墨烯纳米带作为双层系统的一个例子。边缘,NNN跳跃,和一个单一的层的杂质的影响,数值上引入的直接对角化方法中出现的相关块对角矩阵的元素的变化。通过引入层间跳跃强度的非对角分块矩阵,利用广义直接对角化方法构造了上下单层之间的直接层间跳跃.

英文摘要:

In this work the tight binding model calculations are carried out for AA-Bilayer Graphene nanoribbons as an example of bilayer systems. The effects of edges, NNN hopping, and impurities of a single layer are introduced numerically as a change in the elements of the relevant block diagonal matrix appearing in the direct diagonalization method. The direct interlayer hopping between the top and the bottom single layers is constructed in the generalized direct diagonalization method by the off-diagonal block matrices in which the strength of the interlayer hopping is included.

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