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Quantum critical behavior in the insulating region of the two-dimensional metal-insulator transition

dc.contributor.authorGeldart, D. J. W.en_US
dc.contributor.authorNeilson, D.en_US
dc.date.accessioned2013-06-19T17:26:26Z
dc.date.available2013-06-19T17:26:26Z
dc.date.issued2007-11/15en_US
dc.description.abstractWe show that the quantum critical point associated with the metal-insulator transition phenomenon in two dimensions controls an extended critical region encompassing not only the usual quantum critical sector but also a range of the low-temperature insulator region. The extended range of criticality permits a unified analysis of data from the insulating region and quantum critical sector, allowing us to determine both the dynamical critical exponent z and the correlation length critical exponent N from published data from a single experiment in the insulator critical region. We show that the critical exponents determined from the insulator sector consistently describe the temperature dependence of the resistance data from the same experiment in the quantum critical sector. This provides evidence for the presence of a quantum critical point in these systems.en_US
dc.identifier.citationGeldart, D. J. W., and D. Neilson. 2007. "Quantum critical behavior in the insulating region of the two-dimensional metal-insulator transition." Physical Review B (Condensed Matter and Materials Physics) 76(19): 193304-1. Copyright © 2007 American Physical Society.en_US
dc.identifier.issn1098-0121en_US
dc.identifier.issue19en_US
dc.identifier.startpage193304en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.76.193304en_US
dc.identifier.urihttp://hdl.handle.net/10222/25104
dc.identifier.volume76en_US
dc.publisherAmerican Physical Society by AIPen_US
dc.relation.ispartofPhysical Review B (Condensed Matter and Materials Physics)en_US
dc.subjectCritical exponentsen_US
dc.subjectCritical pointsen_US
dc.subjectMetal-insulator transitionen_US
dc.titleQuantum critical behavior in the insulating region of the two-dimensional metal-insulator transitionen_US
dc.typearticleen_US

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