dc.creator | Fuertes, Valeria Cintia | |
dc.creator | Blanco, Marìa Cecilia | |
dc.creator | Franco, Diego Gaspar | |
dc.creator | de Paoli, Juan Martin | |
dc.creator | Pannunzio Miner, Elisa Victoria | |
dc.creator | Sanchez, Rodolfo Daniel | |
dc.creator | Fernández Díaz, M. T. | |
dc.creator | Carbonio, Raul Ernesto | |
dc.date.accessioned | 2019-01-22T20:52:27Z | |
dc.date.accessioned | 2022-10-15T03:30:29Z | |
dc.date.available | 2019-01-22T20:52:27Z | |
dc.date.available | 2022-10-15T03:30:29Z | |
dc.date.created | 2019-01-22T20:52:27Z | |
dc.date.issued | 2009-10 | |
dc.identifier | Fuertes, Valeria Cintia; Blanco, Marìa Cecilia; Franco, Diego Gaspar; de Paoli, Juan Martin; Pannunzio Miner, Elisa Victoria; et al.; New ferromagnetic La3Co2TaO9 double perovskite: Structural and magnetic properties; Elsevier Science; Physica B: Condensed Matter; 404; 18; 10-2009; 2717-2719 | |
dc.identifier | 0921-4526 | |
dc.identifier | http://hdl.handle.net/11336/68431 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4340291 | |
dc.description.abstract | The new double perovskite La3Co2TaO9 has been prepared by a solid-state procedure. The crystal and magnetic structures have been studied from X-ray powder diffraction (XRPD) and neutron powder diffraction (NPD) data. Rietveld refinements were performed in the monoclinic space group P21/n. The structure consists of an ordered array of alternating B′O6 and B″O6 octahedra sharing corners, tilted along the three pseudocubic axes according to the Glazer notation a-b-c+. Rietveld refinements show that at RT the cell parameters are a=5.6005(7) Å, b=5.6931(7) Å, c=7.9429(9) Å and β=89.9539(7)°, and the refined crystallographic formula of this "double perovskite" can be written as La2(Co)2d(Co1/3Ta2/3)2cO6. Magnetization measurements and low-temperature NPD data show that the perovskite is a ferromagnet with TC=72 K. At high T it follows the Curie-Weiss law with an effective magnetic moment of 3.82μB per Co ion which is very close to spin only Co2+ (HS). | |
dc.language | eng | |
dc.publisher | Elsevier Science | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921452609004256 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.physb.2009.06.064 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | CRYSTAL STRUCTURE REFINEMENT | |
dc.subject | DOUBLE PEROVSKITE | |
dc.subject | FERROMAGNETISM | |
dc.subject | MAGNETIC CHARACTERIZATION | |
dc.subject | RIETVELD METHOD | |
dc.title | New ferromagnetic La3Co2TaO9 double perovskite: Structural and magnetic properties | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |