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

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 le...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. B 1992-10, Vol.46 (15), p.9796-9799
Main Authors: BLAIKIE, RJ, NAKAZATO, K, CLEAVER, JRA, AHMED, H
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in interface structures
Exact sciences and technology
Materials Science
Materials Science, Multidisciplinary
Physical Sciences
Physics
Physics, Applied
Physics, Condensed Matter
Science & Technology
Technology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2469-9950
0163-1829
2469-9969
1095-3795
DOI:10.1103/PhysRevB.46.9796