Abstract: We study the electronic structure of the Sr2YRuO6 and Sr2YRu0.75Ir0.25O6 compounds using x-ray (resonant) photoemission and absorption spectroscopies. The experimental results are interpreted with first-principles calculations, which give a good agreement with all the spectra. These results show that, although the spin-orbit coupling does not induce orbital anisotropies in these systems, it is responsible for the reduction of magnetic moments within the the Ir5+ O-6 octahedra, weakening the magnetic ordering in the substituted system. Finally, our findings support the idea that the canting of Ru5+ magnetic moments actually plays an important role in the stabilization of the intriguing magnetic ordering in the Sr2YRuO6 compound.
Author(s): Guedes, E. B.; Abbate, M.; Abud, F.; et al.
O Laboratório Aberto de Interatividade para Disseminação do Conhecimento Científico e Tecnológico (LAbI), vinculado à Universidade Federal de São Carlos (UFSCar), é voltado à prática da divulgação científica pautada na interatividade; nas relações entre Ciência, Arte e Tecnologia.
Writers: A.A. Felix, E. Longo, J.A. Varela, M.O. Orlandi Keywords: CaCu3Ti4O12; Thin film; Conductivity; Gas sensing; Thermopower measurement Abstract: In this work, CaCu3Ti4O12 (CCTO) thin films were synthesized with the polymeric precursor method and characterized […]
Ferroelectricity in the 1 μC cm−2 range induced by canted antiferromagnetism in (LaMn3)Mn4O12 Abstract: Pyroelectric current and field-dependent specific heat measurements on polycrystalline samples of the quadruple perovskite (LaMn3)Mn4O12 give evidence of ferroelectricity driven by the canted antiferromagnetic […]
Photoelectrochemical removal of 17 beta-estradiol using a RuO2-graphene electrode Abstract: A new electrode for the photoelectrochemical removal of 17 beta-estradiol from water using ruthenium oxide nanoparticles supported on reduced graphene oxide is proposed in this study. […]