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: Silvia Leticia Fernandes; Bruna Andressa Bregadiolli; Anna Christina Véron; Frank A. Nüesch; Maria Aparecida Zaghete; Carlos Frederico de Oliveira Graeff Keywords: solar cells; deposition method Abstract: CH3NH3PbI3 perovskite solar cells are one of the most exciting technologies in […]
Writers: R.C. Deus; M. Cilense; C.R. Foschini; M.A. Ramirez; E. Longo; A.Z. Simões Keywords: Nanoparticle; Chemical synthesis; Microwave; Electron microscopy; Crystal structure Abstract: Cystalline ceria (CeO2) nanoparticles have been synthesized by a simple and fast […]
The ultra-precision U-d-lap grinding of flat advanced ceramics Abstract: The present study focuses on the U-d-lap grinding process and its machine-tool design aiming at ultra precision (UP) manufacturing of advanced ceramics. Impacts of three different overlapping […]