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dc.contributor.author Garbarino, Gaston Leonel
dc.contributor.author Acha, Carlos Enrique
dc.date.available 2018-09-24T17:55:34Z
dc.date.issued 2009-12
dc.identifier.citation Garbarino, Gaston Leonel; Acha, Carlos Enrique; A phenomenological description of the pressure sensitivity of the Curie temperature in hole-doped manganites; Europhysics Letters; Europhysics Letters; 88; 4; 12-2009; 46003-46008
dc.identifier.issn 0295-5075
dc.identifier.uri http://hdl.handle.net/11336/60765
dc.description.abstract We performed high-pressure experiments in La0.8Ca0.2-xSr xMnO3 (LCSMO)(0≤ x ≤ 0.2) ceramic samples in order to analyze the validity of the well-known relation between the A-cation mean ionic radius ((ra)) and the Curie temperature Tc of hole-doped manganites at a fixed doping level and for doping values below the 0.3 (Mn+4/Mn+3) ratio. By considering our results and collecting others from the literature, we were able to propose a phenomenological relation that considers the systematic dependence of T c with structural and electronic parameters. The proposed expression predicts fairly well the pressure sensitivity of Tc, its dependence with the A-cation radius disorder and its evolution in the high-pressure range. Considering a Double-Exchange model, modified by polaronic effects, the phenomenological law obtained for Tc can be associated with the product of two terms: the polaronic modified bandwidth and an effective hole doping. Copyright © EPLA, 2009.
dc.format application/pdf
dc.language.iso eng
dc.publisher Europhysics Letters
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject MANGANITES
dc.subject PRESSURE
dc.subject PHASE
dc.subject TRANSITION
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title A phenomenological description of the pressure sensitivity of the Curie temperature in hole-doped manganites
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-09-24T14:32:32Z
dc.journal.volume 88
dc.journal.number 4
dc.journal.pagination 46003-46008
dc.journal.pais Reino Unido
dc.journal.ciudad Londres
dc.description.fil Fil: Garbarino, Gaston Leonel. Universidad de Buenos Aires; Argentina. European Synchrotron Radiation; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil Fil: Acha, Carlos Enrique. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.journal.title Europhysics Letters
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1209/0295-5075/88/46003
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)