Enhanced localization in Landau-quantized systems induced by very low frequencies

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Buß, A.; Hohls, F.; Haug, R.J.; Stellmach, C.; Hein, G.; Nachtwei, G.: Enhanced localization in Landau-quantized systems induced by very low frequencies. In: AIP Conference Proceedings 772 (2005), S. 559-560. DOI: https://doi.org/10.1063/1.1994230

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Abstract: 
Quantum Hall samples with Corbino geometry show an enhanced hysteresis of the I-V curves near the breakdown of the Quantum Hall effect at low AC frequencies. We explain this finding within a hot-electron model by an assumed reduction of the subcritical conductivity σxx (under non-equilibrium conditions) with frequency. In this study, we present measurements of σxx as a function of the frequency on various samples. The observed drop of the subcritical σxx with frequency is of the same order as predicted and proves therefore our model. © 2005 American Institute of Physics.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2005
Appears in Collections:Fakultät für Mathematik und Physik

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1 image of flag of Germany Germany 36 46.15%
2 image of flag of United States United States 22 28.21%
3 image of flag of China China 10 12.82%
4 image of flag of Netherlands Netherlands 2 2.56%
5 image of flag of Czech Republic Czech Republic 2 2.56%
6 image of flag of Canada Canada 2 2.56%
7 image of flag of No geo information available No geo information available 1 1.28%
8 image of flag of Taiwan Taiwan 1 1.28%
9 image of flag of Thailand Thailand 1 1.28%
10 image of flag of Brazil Brazil 1 1.28%

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