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dc.creatorGuzmán Verri, Gian Giacomo
dc.date.accessioned2020-02-27T20:16:01Z
dc.date.available2020-02-27T20:16:01Z
dc.date.issued2019
dc.identifier.citationhttps://www.nature.com/articles/s41586-019-1824-9es_ES
dc.identifier.issn1476-4687
dc.identifier.urihttp://hdl.handle.net/10669/80655
dc.description.abstractMetal-to-insulator transitions driven by strong electronic correlations occur frequently in condensed matter systems, and are associated with remarkable collective phenomena in solids, including superconductivity and magnetism. Tuning and control of the transition holds the promise of low-power, ultrafast electronics, but the relative roles of doping, chemistry, elastic strain and other applied fields have made systematic understanding of such transitions difficult. Here we show that existing data on the tuning of metal-to-insulator transitions in perovskite transition-metal oxides through ionic size effects provides evidence of large systematic effects on the phase transition owing to dynamical fluctuations of the elastic strain, which have usually been neglected. We illustrate this using a simple yet quantitative statistical mechanical calculation in a model that incorporates cooperative lattice distortions coupled to the electronic degrees of freedom. We reproduce the observed dependence of the transition temperature on the cation radius in the well studied manganite and nickelate materials. Because elastic couplings are generally strong, we anticipate that these conclusions will generalize to all metal-to-insulator transitions that couple to a change in lattice symmetry.es_ES
dc.description.sponsorshipVicerrectoría de Investigación/[816-B7-601]/UCR/Costa Ricaes_ES
dc.description.sponsorshipArgonne National Laboratory/[DE-AC02-06CH11357. G.G.G.-V]/ANL/Estados Unidoses_ES
dc.description.sponsorshipRoyal Society International Exchanges/[IES\R3\170025]//Londreses_ES
dc.language.isoen_USes_ES
dc.sourceNature 576, pp.429-432es_ES
dc.subjectTransición metal-aislantees_ES
dc.subjectMetales de transiciónes_ES
dc.subjectCorrelacioneses_ES
dc.titleCooperative elastic fluctuations provide tuning of the metal-insulator transitiones_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.identifier.doi10.1038/s41586-019-1824-9
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencia e Ingeniería de Materiales (CICIMA)es_ES
dc.identifier.codproyecto816-B7-601


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