Spectroscopy and electronic structure ofSr2YRuO6andSr2YRu0.75Ir0.25O6

We study the electronic structure of the ${\mathrm{Sr}}₂{\mathrm{YRuO}}₆$ and ${\mathrm{Sr}}₂{\mathrm{YRu}}_0.75{\mathrm{Ir}}_0.25{\mathrm{O}}₆$ 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 ${\mathrm{Ir}}⁵⁺{\text{O}}₆$ octahedra, weakening the magnetic ordering in the substituted system. Finally, our findings support the idea that the canting of ${\mathrm{Ru}}⁵⁺$ magnetic moments actually plays an important role in the stabilization of the intriguing magnetic ordering in the ${\mathrm{Sr}}₂{\mathrm{YRuO}}₆$ compound.