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

被引：2
|
作者：
Guedes, E. B. [1 ]
Abbate, M. [1 ]
Abud, F. [2 ]
Jardim, R. F. [2 ]
Vicentin, F. C. [3 ]
Mossanek, R. J. O. [1 ]
机构：
[1] Univ Fed Parana, Dept Fis, Caixa Postal 19044, BR-81531990 Curitiba, Parana, Brazil
[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, SP, Brazil
[3] Lab Nacl Luz Sincrotron, Caixa Postal 6192, BR-13083970 Campinas, SP, Brazil
来源：
PHYSICAL REVIEW B | 2016年 / 94卷 / 04期
基金：
巴西圣保罗研究基金会;
关键词：
MAGNETIC-PROPERTIES; PEROVSKITES; CRYSTAL; METAL; LA;
D O I：
10.1103/PhysRevB.94.045109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页数：9
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