Fizika Nizkikh Temperatur: Volume 44, Number 1 (January 2018), p. 74-85    ( to contents , go back )

Integer channels in nonuniform nonequlibrium 2D systems

V. Shikin

Institute of Solid State Physics, Russian Academy of Sciences 2 Academician Ossipyan Str., Chernogolovka 142432, Russia
E-mail: shikin@issp.ac.ru

Received March 10, 2017,revised May 11, 2017

Abstract

Nonequilibrium properties of integer channels in nonuniform 2D electron (hole) systems in presence of strong magnetic field are discussed. The results of this consideration are used for the qualitative explanation of Corbino disk current-voltage characteristics (IVC) un-der quantum Hall effect (QHE) condition. This effect with varying details is confidently observed in Hall bar and Corbino geometries of the used cells. Especially evident “breakdown of the QHE” in the Corbino samples, allowing an explanation of a number of features.

PACS: 52.20.–j Elementary processes in plasmas.

Key words: 2D electron system, quantum Hall effect.

Published online: November 28, 2017

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