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Spectroscopy and electronic structure of Sr2YRuO6 and Sr2YRu0.75Ir0.25O6

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Author(s):
Guedes, E. B. ; Abbate, M. ; Abud, F. ; Jardim, R. F. ; Vicentin, F. C. ; Mossanek, R. J. O.
Total Authors: 6
Document type: Journal article
Source: PHYSICAL REVIEW B; v. 94, n. 4, p. 9-pg., 2016-07-11.
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. (AU)

FAPESP's process: 14/19245-6 - Search for novel superconducting materials
Grantee:Renato de Figueiredo Jardim
Support Opportunities: Scholarships abroad - Research
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 14/12401-2 - Superconductivity in (Nb1-xZrx)B solid solutions
Grantee:Fábio Santos Alves Abud
Support Opportunities: Scholarships in Brazil - Master