RT Journal Article
T1 Magnetic and Structural Studies of Sc Containing Ruthenate Double Perovskites A2ScRuO6 (A = Ba, Sr)
A1 Kayser González, Paula
A1 Injac, Sean
A1 Ranjbar, Ben
A1 Kennedy, Brendan
A1 Avdeev, Maxim
A1 Yamaura, Kazunari
AB Ruthenium-containing double perovskites A2ScRuO6 have been synthesized as polycrystalline powders and structurally characterized using a combination of synchrotron X-ray and neutron powder diffraction methods. When A = Ba, a hexagonal 6L perovskite structure is obtained if the synthesis is conducted at ambient pressure and a rock-salt ordered cubic structure is obtained if the sample is quenched from high pressures. The Sr oxide Sr2ScRuO6 is obtained with a rock-salt ordered corner sharing topology. Heat capacity and bulk magnetic susceptibility measurements show that the three oxides are antiferromagnets. Cubic Ba2ScRuO6 undergoes a metal–insulator transition near 270 K and hexagonal Ba2ScRuO6 is a semiconductor with an activation energy of 0.207 eV. The magnetic structures of the two rock-salt ordered double perovskites were established using powder neutron diffraction and are described by k = (0,0,1) and k = (0,0,0) for the Ba and Sr oxides, respectively, corresponding to type I antiferromagnetic structures, with ferromagnetic layers stacked antiferromagnetically. The ambient-pressure hexagonal polymorph of Ba2ScRuO6 has partial Sc-Ru ordering at both the face-sharing B2O9 dimer and corner-sharing BO6 sites. The magnetic structure is described by k = (1/2,0,0) with the basis vector belonging to the irreducible representation Γ3.
PB American Chemical Society
SN 0020-1669
YR 2017
FD 2017
LK https://hdl.handle.net/20.500.14352/92212
UL https://hdl.handle.net/20.500.14352/92212
LA eng
NO Kayser, Paula, et al. «Magnetic and Structural Studies of Sc Containing Ruthenate Double Perovskites A 2 ScRuO 6 ( A = Ba, Sr)». Inorganic Chemistry, vol. 56, n.o 15, agosto de 2017, pp. 9009-18. https://doi.org/10.1021/acs.inorgchem.7b00983.
NO Japan Society for the Promotion of Science 
DS Docta Complutense
RD 9 abr 2025