Analysis of time behavior in the breakdown of the integral quantum Hall effect

Autor:	G. Marullo-Reedtz, M. Truccato, G. Boella, D. Allasia, L. Cordiali, C. Villavecchia, G. Rinaudo
Rok vydání:	1994
Předmět:	Physics Dynamical systems theory Condensed matter physics Heterojunction High current Quantum Hall effect Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Zdroj:	Physical Review B. 50:7608-7614
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.50.7608
Popis:	The breakdown of the integral quantum Hall effect at high current is studied in wide high-quality GaAs/${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As heterostructures, on the i=2 and i=4 Hall plateaus. The striking features of the phenomenon are pronounced steps in longitudinal resistance with rich time-dependent structures, which are analyzed with techniques normally applied to the study of chaotic behavior in dynamical systems. A number of characteristic parameters of the signal are obtained, showing that the underlying dynamics may be of a chaotic kind.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4994ccdf9a129c6f686af9f9154035c5 https://doi.org/10.1103/physrevb.50.7608 Zobrazit plný text záznamu