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: M M Ferrer and A F Gouveia and L Gracia and E Longo and J Andrés Keywords: crystal; surface energies; surface chemistry Abstract: Essentially, the exposed crystal planes of a given material, which primarily determine their morphology, […]
Spectroscopic Properties of pigment Li2-xZn1-xPrxTi3O8 Abstract: Inorganic compounds doped with rare earths (Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Gd (3+), Tb (3+), Tm3+) have been used in various applications including light-emitting devices such as fluorescent lamps, […]