MICROWAVE RESPONSE OF QUASI-PARTICLES IN THE FQHE

被引：5

作者：

MEISELS, R

KUCHAR, F

HARRIS, JJ

FOXON, CT

机构：

[1] L BOLTZMANN INST FESTKORPERPHYS,A-1060 VIENNA,AUSTRIA

[2] PHILIPS RES LABS,REDHILL RH1 5HA,SURREY,ENGLAND

来源：

SURFACE SCIENCE | 1992年 / 263卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(92)90310-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The fractional quantum Hall effect in AlGaAs/GaAs is investigated by its change DELTA-R(xy) (and DELTA-R(xx)) in response to microwave irradiation. It is interpreted as delocalization of quasi-particles. The signals at fractional filling factors of 1/3, 2/5, 3/7 and 4/9 are contiguous. This indicates the presence of quasi-particles even outside the field regions of fractional Hall plateaus and continuous transitions between subsequent states of the Haldane hierarchy. A rapid rise in \DELTA-R(xx)\ at filling factors nu almost-equal-to 1/5 and below is in accordance with previous R(xx) measurements explained by Wigner crystallization.

引用

页码：76 / 80

页数：5

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