UNSPECIFIED. (2004) Fluctuating Hall resistance defeats the quantized Hall insulator. EUROPHYSICS LETTERS, 66 (1). pp. 104-110. ISSN 0295-5075

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Abstract

Using the Chalker-Coddington network model as a drastically simplified, but universal model of integer quantum Hall physics, we investigate the plateau-to-insulator transition at strong magnetic field by means of a real-space renormalization approach. Our results suggest that for a fully quantum coherent situation, the quantized Hall insulator with RH approximate to h/e(2) is observed up to R-L similar to 25h/e(2) when studying the most probable value of the distribution function P(R-H). Upon further increasing R-L --> infinity, the Hall insulator with diverging Hall resistance R-H proportional to R-L(k) is seen. The crossover between these two regimes depends on the precise nature of the averaging procedure.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Journal or Publication Title:	EUROPHYSICS LETTERS
Publisher:	E D P SCIENCES
ISSN:	0295-5075
Date:	April 2004
Volume:	66
Number:	1
Number of Pages:	7
Page Range:	pp. 104-110
Identification Number:	10.1209/epl/i2003-10148-5
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/8180

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