Quantum Hall Effect at 40 kelvin: Evidence of MacroscopicQuantization in the Extreme Soft Limit

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dc.creatorDatta, Timir
dc.creatorBleiweiss, Michael
dc.creatorLungu, Anca
dc.creatorYin, Ming
dc.creatorIqbal, Zafar
dc.date2005-03-07
dc.date.accessioned2026-07-07T03:04:04Z
dc.date.available2026-07-07T03:04:04Z
dc.descriptionEvidence of both fractional and integer quantum hall effects (QHE) in three dimensional bulk replica opal (250nm diameter) structures of non-crystalline carbon are presented. In a remarkably soft quantum limit of ~ 40K temperature and about one tesla of magnetic field clear hall steps, such as n= 2/3, 4/5, 1 and others were observed to be coordinated with the minima of longitudinal magneto-resistance. This behavior is indicative of macroscopic quantum phenomenon associated with electronic condensation into a strongly correlated quantum liquid (QL). For other systems, such as very high mobility, two-dimensional, electron (hole)-gas or (TDEG) these effects typically arise under high magnetic fields (B) and at low temperatures (T), i.e., in the extreme quantum limit (B/T>1). Currently, QHE is applied as calibration benchmark, international resistance standard, and a characterization technique for semiconductor heterostructures. We believe that applications can be widespread if the devices and the operating conditions were more accessible.
dc.description14pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0503166
dc.identifierhttp://arxiv.org/abs/cond-mat/0503166
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25990
dc.subjectMesoscale and Nanoscale Physics
dc.titleQuantum Hall Effect at 40 kelvin: Evidence of MacroscopicQuantization in the Extreme Soft Limit
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