dc.creator | Perejón Pazo, Antonio | es |
dc.creator | Gil González, Eva | es |
dc.creator | Sánchez Jiménez, Pedro Enrique | es |
dc.creator | West, Anthony R. | es |
dc.creator | Pérez Maqueda, Luis Allan | es |
dc.date.accessioned | 2022-10-05T09:59:08Z | |
dc.date.available | 2022-10-05T09:59:08Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Perejón Pazo, A., Gil González, E., Sánchez Jiménez, P.E., West, A.R. y Pérez Maqueda, L.A. (2019). Electrical properties of bismuth ferrites: Bi2Fe4O9 and Bi25FeO39. Journal of the European Ceramic Society, 39 (2-3), 330-339. https://doi.org/10.1016/j.jeurceramsoc.2018.09.008. | |
dc.identifier.issn | 0955-2219 | es |
dc.identifier.uri | https://hdl.handle.net/11441/137635 | |
dc.description.abstract | Bi2Fe4O9 was prepared by solid-state reaction and the electrical properties measured by impedance spectro-
scopy. After annealing in O2 at 900 °C, Bi2Fe4O9 is an electrically-homogeneous insulator. Its high frequency
permittivity is constant (∼14.1) over the temperature range 300–400 °C and shows no evidence of incipient
ferroelectricity at lower temperatures. On annealing in N2 at 900 °C, the pellets gradually decompose.
Bi25FeO39 was prepared by both solid-state reaction and mechanosynthesis. It showed a modest amount of
mixed conduction of both oxide ions and holes. Impedance analysis showed a complex response that best fitted
an equivalent circuit consisting of a parallel combination of long-range conduction and short range dielectric
relaxation elements.
The electrical conductivity of both Bi2Fe4O9 and Bi25FeO39 is less than that of BiFeO3 prepared by solid-state
reaction, which indicates that any leakage conductivity of BiFeO3 is not due to the possible presence of small
amounts of these secondary phases. | es |
dc.description.sponsorship | Ministerio de Economía y Competitividad de España (MINECO) y Fondos FEDER de la Unión Europea-CTQ2014-52763-C2 y CTQ2017- 83602-C2 | es |
dc.format | application/pdf | es |
dc.format.extent | 10 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Journal of the European Ceramic Society, 39 (2-3), 330-339. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Electrical properties of bismuth ferrites: Bi2Fe4O9 and Bi25FeO39 | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Inorgánica | es |
dc.relation.projectID | CTQ2014-52763-C2 | es |
dc.relation.projectID | CTQ2017-83602-C2 | es |
dc.relation.publisherversion | https://doi.org/10.1016/j.jeurceramsoc.2018.09.008 | es |
dc.identifier.doi | 10.1016/j.jeurceramsoc.2018.09.008 | es |
dc.journaltitle | Journal of the European Ceramic Society | es |
dc.publication.volumen | 39 | es |
dc.publication.issue | 2-3 | es |
dc.publication.initialPage | 330 | es |
dc.publication.endPage | 339 | es |
dc.identifier.sisius | 21582794 | es |
dc.contributor.funder | Ministerio de Economía y Competitividad (MINECO). España | es |
dc.contributor.funder | European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) | es |