RT Journal Article
T1 Structural and magnetic characterization of the double perovskites R2NiRuO6 (R= Pr-Er): A neutron diffraction study
A1 Kayser González, Paula
A1 Alonso, Jose Antonio
A1 Muñoz, Ángel
A1 Fernandez-Díaz, María Teresa
AB Novel 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.
PB Elsevier
SN 1873-2453
YR 2017
FD 2017
LK https://hdl.handle.net/20.500.14352/92255
UL https://hdl.handle.net/20.500.14352/92255
LA eng
NO Kayser, 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.
NO Ministerio de Economía y Competitividad (España)
DS Docta Complutense
RD 9 abr 2025