Mesoscopic effects in the quantum Hall regime
نویسندگان
چکیده
منابع مشابه
Mesoscopic Effects in the Quantum Hall Regime
Abstract. We report results of a study of (integer) quantum Hall transitions in a single or multiple Landau levels for non-interacting electrons in disordered two-dimensional systems, obtained by projecting a tight-binding Hamiltonian to corresponding magnetic subbands. In finite-size systems, we find that mesoscopic effects often dominate, leading to apparent non-universal scaling behaviour in...
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E. Peled,1 Y. Chen,2 E. Diez,2,* D. C. Tsui,2 D. Shahar,1 D. L. Sivco,3 and A. Y. Cho3 1Department of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot 76100, Israel 2Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA 3Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, New Jersey 07974, USA (Received 24 December...
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We study the four-terminal resistance fluctuations of mesoscopic samples near the transition between the nu=2 and the nu=1 quantum Hall states. We observe near-perfect correlations between the fluctuations of the longitudinal and Hall components of the resistance. These correlated fluctuations appear in a magnetic-field range for which the two-terminal resistance of the samples is quantized. We...
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ژورنال
عنوان ژورنال: Pramana
سال: 2002
ISSN: 0304-4289,0973-7111
DOI: 10.1007/s12043-002-0013-1