High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb2NiReO6
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Otros documentos de la autoría: Lyubenova, Teodora; Dos Santos García, Antonio J.; Urones Garrote, Esteban; Torralvo, María José; Alario Franco, Miguel Ángel
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
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High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb2NiReO6Autoría
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2014Editor
Royal Society of ChemistryTipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://pubs.rsc.org/en/Content/ArticleLanding/2014/DT/c3dt52073k#!divAbstractPalabras clave / Materias
Resumen
The ordered double perovskite Pb2NiReO6 has been prepared at 6 GPa and temperatures ranging from 1273 to 1373 K. Its crystal structure determined by X-ray powder diffraction and selected area electron diffraction shows ... [+]
The ordered double perovskite Pb2NiReO6 has been prepared at 6 GPa and temperatures ranging from 1273 to 1373 K. Its crystal structure determined by X-ray powder diffraction and selected area electron diffraction shows monoclinic symmetry with centrosymmetric space group I2/m (a = 5.6021(1) Å, b = 5.6235(1) Å, c = 7.9286(1) Å and β = 90.284°(1)). High angle annular dark field microscopy studies reveal the existence of compositional microdomains. The compound displays a re-entrant spin-glass transition from a ferrimagnetic ordering below TN 37 K between the Re+5 and Ni+3 (high spin configuration) magnetic sublattices to a spin-glass configuration. Magnetic field dependent magnetization measurements revealed wasp-waisted hysteresis loops at 5 K. These shaped features originate from the antiferromagnetic/ferromagnetic (AFM/FM) competing interactions. [-]
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Dalton Transactions, 2014, 43Derechos de acceso
© Royal Society of Chemistry 2014
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