Sources of negative differential resistance in electric nanotransport

被引：27

作者：

Baldea, Ioan ^{[1
,2
]}

Koeppel, Horst ^{[1
]}

机构：

[1] Univ Heidelberg, D-69120 Heidelberg, Germany

[2] ISS, Natl Inst Lasers Plasma & Radiat Phys, Bucharest 077125, Romania

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.81.193401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A negative differential resistance (NDR) in nanotransport is often ascribed to electron correlations. We present a simple example revealing that finite electrode bandwidths and energy-dependent electrode density of states can cause a significant NDR, which may occur even in uncorrelated systems. So, special care is needed in assessing the role of electron correlations in the NDR.

引用

页数：4

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