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dc.creatorHandunkanda, Sahan U.es_ES
dc.creatorCurry, Erin B.es_ES
dc.creatorVoronov, Vladimires_ES
dc.creatorSaid, Ayman H.es_ES
dc.creatorGuzmán Verri, Gian Giacomoes_ES
dc.creatorBrierley, Richard T.es_ES
dc.creatorLittlewood, Peter B.es_ES
dc.creatorHancock, Jason N.es_ES
dc.description.abstractPerovskite structured materials contain myriad tunable ordered phases of electronic and magnetic origin with proven technological importance and strong promise for a variety of energy solutions. An always-contributing influence beneath these cooperative and competing interactions is the lattice, whose physics may be obscured in complex perovskites by the many coupled degrees of freedom, which makes these systems interesting. Here, we report signatures of an approach to a quantum phase transition very near the ground state of the nonmagnetic, ionic insulating, simple cubic perovskite material ScF3, and show that its physical properties are strongly effected as much as 100 K above the putative transition. Spatial and temporal correlations in the high-symmetry cubic phase determined using energy- and momentum-resolved inelastic x-ray scattering as well as x-ray diffraction reveal that soft mode, central peak, and thermal expansion phenomena are all strongly influenced by the transition.es_ES
dc.description.sponsorshipNational Science Foundation Award No. DMR-1506825es_ES
dc.description.sponsorshipUS Department of Energy, Office of Basic Energy Sciences under Contract No. DE- AC02-06CH11357es_ES
dc.description.sponsorshipYale Prize Postdoctoral Fellowshipes_ES
dc.description.sponsorshipNSF Grant No. DMR-0115852es_ES
dc.description.sponsorshipUniversidad de Costa Rica. Vicerrectoría de Investigación Projecto No. 816-B5-220es_ES
dc.rightsAtribución-NoComercial-CompartirIgual 3.0 Costa Ricaes_ES
dc.sourcePhysical Review B 92, 134101 (2015)es_ES
dc.subjectquantum phase transitiones_ES
dc.subjectnegative thermal expansiones_ES
dc.subjectneutron scatteringes_ES
dc.titleLarge isotropic negative thermal expansion above a structural quantum phase transitiones_ES
dc.typeArtículo científicoes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencia e Ingeniería de Materiales (CICIMA)es_ES

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Atribución-NoComercial-CompartirIgual 3.0 Costa Rica
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