Kayser González, PaulaAlonso, Jose AntonioMuñoz, ÁngelFernandez-Díaz, María Teresa2024-01-102024-01-102017Kayser, P., et al. «Structural and Magnetic Characterization of the Double Perovskites R2NiRuO6 (R = Pr-Er): A Neutron Diffraction Study». Acta Materialia, vol. 126, marzo de 2017, pp. 114-23. https://doi.org/10.1016/j.actamat.2016.12.024.1873-245310.1016/j.actamat.2016.12.024https://hdl.handle.net/20.500.14352/92255Novel members of the R2NiRuO6 family of double perovskites have been prepared via a nitrate-citrate route, followed by annealing treatments in air in the 1100-1300 °C temperature range. The crystal and magnetic structures were characterized from neutron powder diffraction (NPD) data at 300 K and 2 K. All the samples are monoclinic, P21/n space group, with a √2a0×√2a0×2a0 unit-cell, compared to the simple perovskite a0 edge. Ni2+ and Ru4+ ions occupy distinct octahedral positions, with a certain antisite disordering. The magnetic structures are defined by the propagation vector k = 0. The magnetic moments of the Ni2+ cations are antiparallel to the spins of the Ru4+ sublattice; the structure can be described as ferromagnetic [011] layers antiferromagnetically (AFM) coupled to each other. For R = Ho and Er perovskites, the rare-earth moments participate in the magnetic structure: Ho3+ cations are ordered along the direction (010) in alternate planes AFM coupled and the magnetic moments of Er3+ are ferromagnetically ordered along the c axis.engjournal articlehttps://doi.org/10.1016/j.actamat.2016.12.024restricted access546Química inorgánica (Química)2303 Química Inorgánica