STRAIN-INDUCED MAGNETORESISTANCE OSCILLATIONS IN GAAS-ALGAAS HETEROJUNCTIONS WITH FERROMAGNETIC AND SUPERCONDUCTING SUBMICROMETER GRATINGS

被引：20

作者：

YE, PD

WEISS, D

GERHARDTS, RR

VONKLITZING, K

EBERL, K

NICKEL, H

FOXON, CT

机构：

[1] DEUTSCH BUNDESPOST,FORSCHUNGSINST,D-64295 DARMSTADT,GERMANY

[2] UNIV NOTTINGHAM,DEPT PHYS,NOTTINGHAM NG7 2RD,ENGLAND

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 1995年 / 10卷 / 05期

关键词：

D O I：

10.1088/0268-1242/10/5/026

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigated the low-field magnetoresistance rho(xx) of a two-dimensional electron gas (2DEG) underneath ferromagnetic and superconducting metallic gratings. The strain due to the different thermal expansion coefficients of the metallic grating and the GaAs-AlGaAs heterojunctions results in a one-dimensional superlattice potential in the plane of the 2DEG. Depending on the aspect ratio of the gratings, different harmonics of the potential can be resolved in rho(xx). The observed resistance anomalies can be modelled in a simple semiclassical model.

引用

页码：715 / 719

页数：5

共 24 条

[1] GUIDING-CENTER-DRIFT RESONANCE IN A PERIODICALLY MODULATED TWO-DIMENSIONAL ELECTRON-GAS [J].