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23 April 2024

» arxiv » 1209.2756

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Insulator, semiclassical oscillations and quantum Hall liquids at low magnetic fields
Shun-Tsung Lo ; Yi-Ting Wang ; G Bohra ; E Comfort ; T-Y Lin ; M-G Kang ; G Strasser ; J P Bird ; C F Huang ; Li-Hung Lin ; J C Chen ; C-T Liang ;
Date:	13 Sep 2012
Abstract:	Magneto-transport measurements are performed on two-dimensional GaAs electron systems to probe the quantum Hall (QH) effect at low magnetic fields. Oscillations following the Shubnikov-de Haas (SdH) formula are observed in the transition from the insulator to QH liquid when the observed almost temperature-independent Hall slope indicates insignificant interaction correction. Our study shows that the existence of SdH oscillations in such a transition can be understood based on the non-interacting model.
Source:	arXiv, 1209.2756
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