Transmission eigenchannels from nonequilibrium Green's functions

被引：278

作者：

Paulsson, Magnus

Brandbyge, Mads

机构：

[1] DTU, MIC, DK-2800 Lyngby, Denmark

[2] Toyama Univ, Dept Elect, Toyama 9308555, Japan

[3] Univ Kalmar, Sch Pure & Appl Nat Sci, Div Phys, Kalmar 39182, Slovenia

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.76.115117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The concept of transmission eigenchannels is described in a tight-binding nonequilibrium Green's function (NEGF) framework. A simple procedure for calculating the eigenchannels is derived using only the properties of the device subspace and quantities normally available in a NEGF calculation. The method is exemplified by visualization in real space of the eigenchannels for three different molecular and atomic wires.

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页数：7

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