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Large isotropic negative thermal expansion above a structural quantum phase transition
dc.creator | Handunkanda, Sahan U. | |
dc.creator | Curry, Erin B. | |
dc.creator | Voronov, Vladimir | |
dc.creator | Said, Ayman H. | |
dc.creator | Guzmán Verri, Gian Giacomo | |
dc.creator | Brierley, Richard T. | |
dc.creator | Littlewood, Peter B. | |
dc.creator | Hancock, Jason N. | |
dc.date.accessioned | 2016-06-09T20:09:51Z | |
dc.date.available | 2016-06-09T20:09:51Z | |
dc.date.issued | 2015-10-01 | |
dc.identifier.citation | http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.134101 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.uri | https://hdl.handle.net/10669/27887 | |
dc.description.abstract | Perovskite 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.sponsorship | National Science Foundation Award No. DMR-1506825 | es_ES |
dc.description.sponsorship | US Department of Energy, Office of Basic Energy Sciences under Contract No. DE- AC02-06CH11357 | es_ES |
dc.description.sponsorship | Yale Prize Postdoctoral Fellowship | es_ES |
dc.description.sponsorship | NSF Grant No. DMR-0115852 | es_ES |
dc.description.sponsorship | Universidad de Costa Rica. Vicerrectoría de Investigación Projecto No. 816-B5-220 | es_ES |
dc.language.iso | en_US | es_ES |
dc.rights | Atribución-NoComercial-CompartirIgual 3.0 Costa Rica | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/cr/ | es_ES |
dc.source | Physical Review B 92, 134101 (2015) | es_ES |
dc.subject | quantum phase transition | es_ES |
dc.subject | negative thermal expansion | es_ES |
dc.subject | ScF3 | es_ES |
dc.subject | neutron scattering | es_ES |
dc.title | Large isotropic negative thermal expansion above a structural quantum phase transition | es_ES |
dc.type | artículo original | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevB.92.134101 | es_ES |
dc.description.procedence | UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencia e Ingeniería de Materiales (CICIMA) | es_ES |
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