New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1)
In this work, the sol–gel synthesis, structural characterization, and transport properties of a new solid solution of the general formula LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) are presented. The solubility limit x has been determined and variation of the lattice parameters measured through profile fitt...
| Authors: | ; ; ; ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2011 |
| Country: | España |
| Institution: | Universidad Complutense de Madrid (UCM) |
| Repository: | Docta Complutense |
| Language: | English |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/94020 |
| Online Access: | https://hdl.handle.net/20.500.14352/94020 |
| Access Level: | Open access |
| Keyword: | Perovskite Magnetism Structure Química inorgánica (Química) 23 Química 2303 Química Inorgánica |
| _version_ | 1878729339279769600 |
|---|---|
| author | Villafuerte-Castrejón, Maria Elena |
| author2 | García-Guaderrama, Marco Fuentes, Lelia Prado Gonjal, Jesús de la Paz González Fuente, Ana María de la Rubia, Maria Angeles García-Hernández, Maite Morán, Eduardo |
| author2_role | author author author author author author author |
| author_browse | Fuentes, Lelia García-Guaderrama, Marco García-Hernández, Maite González Fuente, Ana María Morán, Eduardo Prado Gonjal, Jesús de la Paz Villafuerte-Castrejón, Maria Elena de la Rubia, Maria Angeles |
| author_facet | Villafuerte-Castrejón, Maria Elena García-Guaderrama, Marco Fuentes, Lelia Prado Gonjal, Jesús de la Paz González Fuente, Ana María de la Rubia, Maria Angeles García-Hernández, Maite Morán, Eduardo |
| author_role | author |
| collection | Docta Complutense |
| description | In this work, the sol–gel synthesis, structural characterization, and transport properties of a new solid solution of the general formula LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) are presented. The solubility limit x has been determined and variation of the lattice parameters measured through profile fitting. The cell parameters, space group, and atomic positions, as obtained by the Rietveld refinement of X-ray diffraction data, are reported. This analysis and electron diffraction studies as well do not reveal any evidence of Fe/Cr ordering. Regarding the transport properties, magnetic and electric characterizations are described. The electrical response with the temperature and frequency has been studied, and a “positive temperature coefficient” for the resistivity has been found for temperatures between 270 and 400 °C. The magnetic behavior is striking because, for all materials studied, zero-field-cooling curves appear above field-cooling ones, an anomalous feature that is interpreted as being due to complex ferromagnetic/antiferromagnetic interactions in the B perovskite sublattice. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_05fb4d2b3c19e43960b7a647d8fdabe1 |
| institution | Universidad Complutense de Madrid (UCM) |
| instname_str | Universidad Complutense de Madrid (UCM) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:docta.ucm.es:20.500.14352/94020 |
| publishDate | 2011 |
| publishDateSort | 2011 |
| reponame_str | Docta Complutense |
| spelling | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) Villafuerte-Castrejón, Maria Elena García-Guaderrama, Marco Fuentes, Lelia Prado Gonjal, Jesús de la Paz González Fuente, Ana María de la Rubia, Maria Angeles García-Hernández, Maite Morán, Eduardo Perovskite Magnetism Structure Química inorgánica (Química) 23 Química 2303 Química Inorgánica In this work, the sol–gel synthesis, structural characterization, and transport properties of a new solid solution of the general formula LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) are presented. The solubility limit x has been determined and variation of the lattice parameters measured through profile fitting. The cell parameters, space group, and atomic positions, as obtained by the Rietveld refinement of X-ray diffraction data, are reported. This analysis and electron diffraction studies as well do not reveal any evidence of Fe/Cr ordering. Regarding the transport properties, magnetic and electric characterizations are described. The electrical response with the temperature and frequency has been studied, and a “positive temperature coefficient” for the resistivity has been found for temperatures between 270 and 400 °C. The magnetic behavior is striking because, for all materials studied, zero-field-cooling curves appear above field-cooling ones, an anomalous feature that is interpreted as being due to complex ferromagnetic/antiferromagnetic interactions in the B perovskite sublattice. https://hdl.handle.net/20.500.14352/94020 |
| spellingShingle | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) Villafuerte-Castrejón, Maria Elena Perovskite Magnetism Structure Química inorgánica (Química) 23 Química 2303 Química Inorgánica |
| title | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) |
| title_full | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) |
| title_fullStr | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) |
| title_full_unstemmed | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) |
| title_short | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) |
| title_sort | New Fe3+/ Cr3+ Perovskites with Anomalous Transport Properties: The Solid Solution LaxBi1–xFe0.5Cr0.5O3 (0.4 ≤ x ≤ 1) |
| topic | Perovskite Magnetism Structure Química inorgánica (Química) 23 Química 2303 Química Inorgánica |
| topic_facet | Perovskite Magnetism Structure Química inorgánica (Química) 23 Química 2303 Química Inorgánica |
| url | https://hdl.handle.net/20.500.14352/94020 |