Dependence of Conductance of Corrugated Graphene Quantum Dot on Geometrical Features  

作　　者：LI Gui-Qin DENG Jing-Kang CAI Jun 

机构地区：[1]Department of Physics, Tsinghua University, Beijing 100084, China

出　　处：《Communications in Theoretical Physics》2009年第11期960-964,共5页理论物理通讯（英文版）

摘　　要：Dependence of conductance of corrugated graphene quantum dot(CGQD)on geometrical features includinglength,width,connection and edge is investigated by the first principles calculations.The results demonstrate that theconductance of CGQD with different geometrical features is different from each other.The positions and amplitudesof discrete levels in densities of states and transmission coefficients are sensitive to geometrical features.The I-Vcharacteristics of graphene are modified by size and edge,it is surprise the current does not change monotonously butoscillatory with length.And they are slight change for different connections.

关 键 词：corrugated graphene CONDUCTANCE first principles calculations geometrical features 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] O471.1[自动化与计算机技术—计算机科学与技术]