2024-03-29T12:52:02Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/893982019-11-18T19:06:38Zcom_10234_7053com_10234_9col_10234_8639
00925njm 22002777a 4500
dc
Lyubenova, Teodora
author
Dos Santos García, Antonio J.
author
Urones Garrote, Esteban
author
Torralvo, María José
author
Alario Franco, Miguel Ángel
author
2014
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.
http://hdl.handle.net/10234/89398
http://dx.doi.org/10.1039/c3dt52073k
Pb2NiReO6
High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb2NiReO6