Electrostatically tuned quantum superconductor-metal-insulator transition at the LaAlO3/SrTiO3 interface

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dc.creatorSchneider, T.
dc.creatorCaviglia, A. D.
dc.creatorGariglio, S.
dc.creatorReyren, N.
dc.creator2
dc.creatorTriscone, J. -M.
dc.date2009-04-16
dc.date.accessioned2026-07-07T13:05:01Z
dc.date.available2026-07-07T13:05:01Z
dc.descriptionRecently superconductivity at the interface between the insulators LaAlO3 and SrTiO3 has been tuned with the electric field effect to an unprecedented range of transition temperatures. Here we perform a detailed finite size scaling analysis to explore the compatibility of the phase transition line with Berezinskii-Kosterlitz-Thouless (BKT) behavior and a 2D-quantum phase(QP)-transition. In an intermediate regime, limited by a gate voltage dependent limiting length, we uncover remarkable consistency with a BKT-critical line ending at a metallic quantum critical point, separating a weakly localized insulator from the superconducting phase. Our estimates for the critical exponents of the 2D-QP-transition, z=1 and nu=0.66, suggest that it belongs to the 3D-xy universality class.
dc.description10 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/0904.2488
dc.identifierhttp://arxiv.org/abs/0904.2488
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227367
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleElectrostatically tuned quantum superconductor-metal-insulator transition at the LaAlO3/SrTiO3 interface
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