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.
Short-range structure and photoluminescent properties of the CaTiO3:Pr,La phosphor Abstract: Pr3+-doped CaTiO3 perovskite is a promising phosphor compound with the possibility of use in several technological applications. In this paper, we report the substitution of Ca2+ […]
Writers: Breno Ebinuma Takiuti; Michael J. Brennan; Walter Katsumi Sakamoto; José Antônio Malmonge; Marcelo Ornaghi Orlandi Keywords: Structural health monitoring; Nanocomposite; Continuous sensors; Neural network; ITO Abstract: In order to secure the structural integrity of aeronautic structures, several structural health monitoring techniques have been studied throughout history. One of the most recent technologies […]
Effects of chemical substitution on the structural and optical properties of alpha-Ag2-2xNixWO4 (0 <= x <= 0.08) solid solutions Abstract: In this work, we investigated the effects of chemical substitution on the structural, electronic, and […]