PERSISTENT CURRENT IN A ONE-DIMENSIONAL RING INDUCED BY AN ELECTROMAGNETIC POTENTIAL

被引：8

作者：

TAKAI, D

OHTA, K

机构：

[1] Fundamental Res. Labs., NEC Corp., Tsukuba

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 28期

关键词：

D O I：

10.1088/0953-8984/6/28/021

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, we study the persistent current in a normal conductor ring coupled to a reservoir with an ideal lead and investigate the effect of an electromagnetic potential on free electrons in a normal-conductor one-dimensional ring. The electrostatic potential on the ring modulates the amplitude, phase and frequency of the Aharonov-Bohm flux current. We discuss the effect of reflection on both sides of the gate electrode on the persistent current in the presence of an electromagnetic potential. The oscillation amplitude of the persistent current and the density of states decrease as the electrostatic potential increases at constant magnetic flux.

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页码：5485 / 5491

页数：7

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