High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb2NiReO6
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Other documents of the author: Lyubenova, Teodora; Dos Santos García, Antonio J.; Urones Garrote, Esteban; Torralvo, María José; Alario Franco, Miguel Ángel
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comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
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Title
High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb2NiReO6Author (s)
Date
2014Publisher
Royal Society of ChemistryType
info:eu-repo/semantics/articleSubject
Abstract
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, 43Rights
© Royal Society of Chemistry 2014
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