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THEORETICAL RESULTS FOR COHERENT CONDUCTANCE IN A SINGLE WALL CARBON NANOTUBE (SWCNT)

机译：单壁碳纳米管（SWCNT）相干传导的理论结果

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In this work, we extend analytically Green's function (GF) formalism to calculate the electrical conductance for an armchair SWCNT in the ballistic and linear response regime. We obtain an exact analytical formula for the conductance of the SWCNT, in the tight-binding (TB) approach and assuming nearest-neighbor interaction by recursion process in the GF formalism. We show that in the presence of homogeneous external potential, the number of conductance channels and resonance energy range of the system decrease.

机译：在这项工作中，我们扩展了格林函数（GF）形式的分析形式，以计算扶手椅SWCNT在弹道和线性响应体系中的电导率。我们在紧束缚（TB）方法中并假设在GF形式主义中通过递归过程进行了最近邻交互，从而获得了SWCNT电导的精确解析公式。我们表明，在存在均匀外部电势的情况下，系统的电导通道数和共振能量范围会减小。

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来源
《Nanotechnology amp; applications》|2008年|90-94|共5页
会议地点 Crete(GR);Crete(GR)
作者
Mohammad Mardaani; Tahmasb Mardaani;
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作者单位

Physics Group, Faculty of Science, Shahrekord University, P. O. Box 115, Shahrekord, Iran Computational Physical Science Research Laboratory, Department of Nano-Science, Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran;

Physics Group, Azad University of Shahrekord (Center of Farsan), Shahrekord, Iran;

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原文格式 PDF
正文语种 eng
中图分类特种结构材料;
关键词
green's function; modelling; electrical conductance; SWCNT; tight-binding;

机译：格林函数造型;电导SWCNT；紧密绑定;

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THEORETICAL RESULTS FOR COHERENT CONDUCTANCE IN A SINGLE WALL CARBON NANOTUBE (SWCNT)

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