Structural, magnetic and dielectric properties of the novel magnetic spinel compounds ZnCoSnO₄ and ZnCoTiO₄

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dc.contributor.authorRuiz León, Domingo
dc.contributor.authorMompean, Federico
dc.contributor.authorPrado Gonjal, Jesús De La Paz
dc.contributor.authorMarco, José F.
dc.contributor.authorGarcía Hernandez, Mar
dc.contributor.authorSchmid, Rainer
dc.date.accessioned2023-06-17T12:29:41Z
dc.date.available2023-06-17T12:29:41Z
dc.date.issued2018-12
dc.description©Elsevier Science BV. R.S. acknowledges a travel grant (Convenio Internacional) from the Universidad Complutense de Madrid to visit the USACH in Chile. JPG thanks the Spanish MINECO for granting a Juan de la Cierva fellowship. Spanish MINECO grant MAT2014-52405-C2-2- R is also acknowledged.
dc.description.abstractThe transparent semiconductor Zn₂SnO₄ with cubic spinel structure and the isostructural Zn₂Ti₄O have been magnetically doped with Co^(2++) ZnCoSnO₄ and ZnCoTiO₄ exhibit ferrimagnetism below TN ≈ 13 K and TN ≈ 17 K. Ferrimagnetic moments are evident in M vs H curves below TN by small hysteresis. Fits to strictly linear Curie-Weiss plots above TN give µ_(eff) ≈ to 4.86 µ(B) and a ≈ to 4.91 µB for ZnCoSnO₄ and ZnCoTiO₄, above theoretical predictions. Impedance spectroscopy data from sintered ceramic can be fitted with a standard equivalent circuit model based on two RC elements for bulk and GB areas. The relative dielectric permittivity of the bulk is ≈ 20 and ≈ to 30 for Zn₂SnO₄ and Zn₂TiO₄. The semiconducting ZnCoSn SnO₄ and ZnCoTiO₄ceramics exhibit bulk resistivity of ≈ to 1 10⁶Ω cm and ≈ to 1 10⁵ Ωcm at 560 K (287°C), and bulk activation energies of EA ≈ to 1.2 eV and 1.1 eV.
dc.description.departmentDepto. de Física de Materiales
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO)
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/49873
dc.identifier.doi10.1016/j.jeurceramsoc.2018.07.031
dc.identifier.issn0955-2219
dc.identifier.officialurlhttp://dx.doi.org/ 10.1016/j.jeurceramsoc.2018.07.031
dc.identifier.relatedurlhttps://www.sciencedirect.com
dc.identifier.urihttps://hdl.handle.net/20.500.14352/12282
dc.issue.number15
dc.journal.titleJournal of the european ceramic society
dc.language.isoeng
dc.page.final4993
dc.page.initial4986
dc.publisherElsevier Science BV
dc.relation.projectIDMAT2014-52405-C2-2-R
dc.rights.accessRightsopen access
dc.subject.cdu538.9
dc.subject.keywordSensitized solar-Cells
dc.subject.keywordHydrothermal method
dc.subject.keywordZinc stannate
dc.subject.keywordGlass behavior
dc.subject.keywordZn₂SnO₄
dc.subject.keywordCeramics
dc.subject.keywordMicrowave
dc.subject.ucmFísica de materiales
dc.subject.ucmFísica del estado sólido
dc.subject.unesco2211 Física del Estado Sólido
dc.titleStructural, magnetic and dielectric properties of the novel magnetic spinel compounds ZnCoSnO₄ and ZnCoTiO₄
dc.typejournal article
dc.volume.number38
dspace.entity.typePublication
relation.isAuthorOfPublication7a2b8d3d-7159-48e6-a318-76923a9867ed
relation.isAuthorOfPublication.latestForDiscovery7a2b8d3d-7159-48e6-a318-76923a9867ed
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