Stability field and structural properties of intra-rare earth perovskites (Articolo in rivista)

Type
Label
  • Stability field and structural properties of intra-rare earth perovskites (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jallcom.2010.01.030 (literal)
Alternative label
  • Artini C.; Costa G.; Carnasciali M.; Masini R. (2010)
    Stability field and structural properties of intra-rare earth perovskites
    in Journal of alloys and compounds; ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Artini C.; Costa G.; Carnasciali M.; Masini R. (literal)
Pagina inizio
  • 336 (literal)
Pagina fine
  • 339 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0925838810000630 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 494 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: Journal of Alloys and Compounds, vol. 494 (1-2) pp. 336 - 339. Elsevier, 2010. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-INFM, Genova - LAMIA e Dipartimento di Chimica Genova, INSTM and DCCI, Via Dodecaneso 31, 16146 Genova, Italy, CNR-IMEM, Genova; CNR-INFM, Genova - LAMIA e Dipartimento di Chimica Genova, INSTM and DCCI, Via Dodecaneso 31, 16146 Genova, Italy, CNR-IMEM, Genova; INSTM and DCCI, Via Dodecaneso, 31, 16146 Genova, Italy; CNR-IMEM, Via Dodecaneso, 33, 16146 Genova, Italy (literal)
Titolo
  • Stability field and structural properties of intra-rare earth perovskites (literal)
Abstract
  • A stability study of perovskitic LaREO3 oxides (RE = Dy, Ho, Er, Tm, Yb, Lu) as a function of temperature was undertaken. A correlation between the Goldschmidt t value and the perovskitic stability field amplitude was found: the latter widens as t increases. Magnetic measurements, performed on all the perovskitic samples, showed that t is also related to the exchange interactions. LaREO3 oxides were synthesized by thermal decomposition of the corresponding coprecipitated oxalates at temperatures ranging between 600 and 1800 ◦C. Simultaneous differential thermal and thermogravimetric analyses showed that all the La-RE mixed oxalates decompose similarly. All the oxides, except LaDyO3, crystallize in the perovskitic form in a temperature range that depends on the ionic size difference between La and the smaller rare earth; above and below the perovskitic stability field, the B or C form, typical of rare earth sesquioxides, is present. Rietveld refinements, carried out on all the LaREO3 samples synthesized at 1200 ◦C, showed the occurrence of an orthorhombic distorted perovskitic structure belonging to the Pnma space group. (literal)
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