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Unexpected wide tuning of ferroelectric properties by varying the Er concentration in La2-xErx(MoO4)3 (x = 0.75, 1, 1.25) solid solutions

dc.contributor.advisor
dc.contributor.advisor
dc.contributor.advisorGonzález Silgo, C.
dc.contributor.advisorSoler Carracedo, Kevin 
dc.contributor.advisorMartín, I.R.
dc.contributor.advisorRivera López, Fernando 
dc.contributor.advisorRodríguez Rodríguez, S.
dc.contributor.authorTorres Betancort, Manuel Eulalio 
dc.contributor.authorGil de Cos, G.
dc.date.accessioned2023-12-19T21:06:50Z
dc.date.available2023-12-19T21:06:50Z
dc.date.issued2022
dc.date.issued
dc.identifier.issn0022-4596
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/34897
dc.description.abstractPowdersamplesoftheseriesLa2-xErx(MoO4)3(x¼0.75,1,1.25)werepreparedbysolid-statereactionfromthe LaandErtrimolybdates.Thecorrelationoftheferroelectricpropertieswiththecrystalstructure,asafunctionof thexconcentration,wasstudiedbyX-raydiffraction(XRD),dielectricandoptical spectroscopy,andtheferroelectrichysteresis loopmeasurements.Theβ0-Gd2(MoO4)3structuretypewas identifiedbyanon-conventional Rietveldmethod, includingasymmetryanalysis.Contrarytotheexpectations, theferroelectricpropertieswere intensifiedby theEr3þconcentration increase: themaximumpolarization forx¼1.25reachesoneorderof magnitudelargerthanthatofx¼0.75,andtheCurietemperatureincreasewasaround200K.Thisunexpected behavior isoppositeof thatobservedfortheimproperferroelectricsRE2(MoO4)3,wheretheferroelectricpropertiesareenhancedwiththeREionicradiusincrease.Hence, theseriesLa2-xErx(MoO4)3showan“widertuning range”forferroelectricpropertiesoppositetotherareearthtrimolybdatefamily
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.relation.ispartofseriesJournal of Solid State Chemistry 315 (2022)
dc.rightsLicencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
dc.titleUnexpected wide tuning of ferroelectric properties by varying the Er concentration in La2-xErx(MoO4)3 (x = 0.75, 1, 1.25) solid solutions
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.jssc.2022.123462
dc.identifier.doi
dc.subject.keywordInorganic compounds; Crystal structure; Dielectric properties; Ferroelectricity; Phasetransitions


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