Artículo
Synthesis and characterization of the new two-dimensional Heisenberg antiferromagnet double perovskite BaLaCuSbO6
Blanco, Marìa Cecilia
; Paz, Sergio Alexis
; Nassif, Vivian M.; Guimpel, Julio Juan
; Carbonio, Raul Ernesto
Fecha de publicación:
03/2015
Editorial:
Royal Society of Chemistry
Revista:
Dalton Transactions
ISSN:
1477-9226
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The BaLaCuSbO6 double perovskite has been successfully synthesized by solid state reaction under an air atmosphere. Its structure was refined using powder neutron diffraction in the monoclinic space group I2/m with a 4% antisite disorder on the B cations. Magnetic measurements give signs of 2D-antiferromagnetic behaviour with TN around 64 K. The Jahn–Teller distortion produced by Cu2+ ions favours a crystallographic tetragonal distortion and consequently the in-plane super–superexchange antiferromagnetic interactions, J90°, are favoured over the in-plane J180° antiferromagnetic exchange interactions. Both, J and J′ magnetic interactions have been evaluated according to a Heisenberg antiferromagnetic rectangular model using an approximation to Curie's law in powers of J/T, being |J| around 10 times stronger than |J′|.
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Blanco, Marìa Cecilia; Paz, Sergio Alexis; Nassif, Vivian M.; Guimpel, Julio Juan; Carbonio, Raul Ernesto; Synthesis and characterization of the new two-dimensional Heisenberg antiferromagnet double perovskite BaLaCuSbO6; Royal Society of Chemistry; Dalton Transactions; 44; 23; 3-2015; 10860-10866
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