2013/11/30 by J. P. Clancy, A. Lupascu, H. Gretarsson +11
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Chemistry #Condensed matter physics #Doping #Magnetic and transport properties of perovskites and related materials #Magnetism #Percolation (cognitive psychology) #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.89.054409
published as Phys. Rev. B 89, 054409 (2014) · 9 pages, 7 figures
openalex publication_date 2014/02/10 · arxiv created 2014/02/11 · arxiv updated 2014/02/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We have used a combination of resonant magnetic x-ray scattering and x-ray absorption spectroscopy to investigate the properties of the doped spin-orbital Mott insulator Sr2Ir_1\ensuremath-xRhxO4 (0.07\ensuremath≤x\ensuremath≤0.70). We show that Sr2Ir_1\ensuremath-xRhxO4 represents a unique model system for the study of dilute magnetism in the presence of strong spin-orbit coupling, and provide evidence of a doping-induced change in magnetic structure and a suppression of magnetic order at xc\ensuremath∼0.17. We demonstrate that Rh-doping introduces Rh3+/Ir5+ ions which effectively hole-dope this material. We propose that the magnetic phase diagram for this material can be understood in terms of a novel spin-orbital percolation picture.