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.
Role of Dipolar Interactions and Volume Particle Size Distribution on the Nonmonotonic Magnetic Field Dependence of the Blocking Temperature in Magnetic Nanoparticles Abstract: The nonmonotonic behavior of the magnetic field dependence H of the superparamagnetic blocking […]
Writers: Wesley B.S. Machini and Marcos F.S. Teixeira Keywords: Bio-inspired sensor; Biomimetic; Doping analysis Abstract: A bio-inspired electrochemical sensor using a binuclear oxo-manganese complex was evaluated and applied in the detection of a substance associated with doping in […]
Writers: Lorena Athie Goulart and Fernando Cruz de Moraes and Lucia Helena Mascaro Keywords: Acid treatment; Bisphenol A; Multi-walled carbon nanotubes; Electrochemical sensor Abstract: Different methods of functionalisation and the influence of the multi-walled carbon nanotube sizes were […]