First-principles calculations of tunneling conductance

被引：15
|
作者：
Ishida, H [1 ]
Wortmann, D
Ohwaki, T
机构：
[1] Nihon Univ, Coll Humanities & Sci, Tokyo 1568550, Japan
[2] AIST, Res Inst Computat Sci, Tsukuba, Ibaraki 3068568, Japan
来源：
PHYSICAL REVIEW B | 2004年 / 70卷 / 08期
关键词：
D O I：
10.1103/PhysRevB.70.085409
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Based on the embedding Green function method, we present a formula to calculate the current through a tunnel barrier. In contrast to the Landauer equation, our approach incorporates not only the contribution of propagating bulk states but also tunneling from localized states. As a first example, field emission from Cu surfaces and electronic transport in a Cu-vacuum-Cu system are presented.
引用
收藏
页码：085409 / 1
页数：8
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