Electric field effects on motion of a charged particle through a saddle potential in a magnetic field

被引：2

作者：

Fessatidis, Vassilios ^{[1
]}

Horing, N. J. M.

Sabeeh, K.

Yar, A.

Glasser, M. L.

机构：

[1] Fordham Univ, Dept Phys, Bronx, NY 10458 USA

[2] Stevens Inst Technol, Dept Phys & Engn Phys, Hoboken, NJ 07030 USA

[3] Quaid I Azam Univ, Dept Phys, Islamabad 45320, Pakistan

[4] Clarkson Univ, Dept Phys, Potsdam, NY 13699 USA

[5] Clarkson Univ, Ctr Quantum Device Technol, Potsdam, NY 13699 USA

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.76.115328

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The role of an electric field in electron transmission through a quantum point contact (QPC) in the presence of a magnetic field is analyzed here, modeling the QPC as a saddle potential. In this paper, we derive the relevant Green's function, including the effects of arbitrarily time-dependent electric and constant magnetic fields. The derivation is carried out using Schwinger's operator equation of motion approach. In the second part of the paper, we apply the Green's function to determine transmission of the electron guiding center through the QPC in constant electric and magnetic fields.

引用

页数：9

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