Nonlinear magnetoconductance of nanowires

被引：27

作者：

Bogachek, EN ^{[1
]}

Scherbakov, AG ^{[1
]}

Landman, U ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.56.14917

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quantum magnetoconductance properties of three-dimensional nanowires are studied in the nonlinear (finite-voltage) regime. In the absence of a magnetic field a finite applied voltage leads to the appearance of new plateaus in the differential conductance of the wires, as well as shifts in the locations of the conductance steps. For wires that are symmetric with respect to the plane of the narrowest cross section the new plateaus an characterized by heights that are integer multiples of e(2)/h. When placed in a longitudinal magnetic field the conductance as a function of the field strength, and. in particular, magnetic-field-induced switching between quantized conductance levels, can be similarly affected by an applied-finite voltage. This indicates possible experimental control of quantum transport in three-dimensional wires by external fields.

引用

页码：14917 / 14920

页数：4

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