ENHANCEMENT OF RESISTANCE ANOMALIES BY DIFFUSE BOUNDARY SCATTERING IN MULTIPROBE BALLISTIC CONDUCTORS

被引：16

作者：

BLAIKIE, RJ ^{[1
]}

NAKAZATO, K ^{[1
]}

CLEAVER, JRA ^{[1
]}

AHMED, H ^{[1
]}

机构：

[1] HITACHI CAMBRIDGE LAB, CAMBRIDGE CB3 0HE, ENGLAND

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.46.9796

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have extended the billiard-ball model for multiprobe ballistic conductors to include explicitly diffuse boundary scattering. We find that the negative zero-field bend resistance and the quenching of the Hall effect are both enhanced by diffuse boundary scattering, due to the effects of nonzero length leads on the angular distribution of the electrons entering the junction. Two peaks are predicted in the longitudinal magnetoresistance and verified by measurements on a multiprobe wire fabricated in GaAs/AlxGa1-xAs heterostructure using p-type implants to provide the lateral confinement.

引用

页码：9796 / 9799

页数：4

共 15 条

[1] CLASSICAL AND QUANTUM BALLISTIC-TRANSPORT ANOMALIES IN MICROJUNCTIONS [J].