Anderson disorder in graphene nanoribbons: A local distribution approach
Anderson disorder in graphene nanoribbons: A local distribution approach
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DOI：
10.1103/physrevb.79.235116
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发表时间：
2009-04
影响因子：
3.7
通讯作者：
G. Schubert;J. Schleede;H. Fehske
中科院分区：
文献类型：
--
作者：
G. Schubert;J. Schleede;H. Fehske
无序效应强烈影响石墨烯基纳米器件的输运性质，甚至影响到安德森局域化的程度。从局域态密度及其分布函数出发，分析了实际尺寸石墨烯纳米带的局域化特性。特别是，我们确定的时间演化和本地化长度的单粒子波函数的依赖于带状扩展和边缘几何形状，以及对无序类型和强度。
Disorder effects strongly influence the transport properties of graphene-based nanodevices even to the point of Anderson localization. Focusing on the local density of states and its distribution function, we analyze the localization properties of actual size graphene nanoribbons. In particular, we determine the time evolution and localization length of the single-particle wave function in dependence on the ribbon extension and edge geometry as well as on the disorder type and strength.