2013/11/12 by K. Yoshimatsu, Hiroki Wadati, H. Wadati +22
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Analytical Chemistry (journal) #Chemistry #Condensed matter physics #Crystallography #Doping #Ferromagnetism #Ion #Magnetic and transport properties of perovskites and related materials #Magnetic circular dichroism #Magnetic moment #Magnetism #Manganite #Materials science #Multiferroics and related materials #Perovskite (structure) #Physics #Spectral line #Superexchange #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.88.174423
published as Phys. Rev. B 88, 174423 (2013) · 7 pages and 6 figures
arxiv created 2013/11/12 · openalex publication_date 2013/11/26 · arxiv updated 2015/04/10 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have investigated the electronic and magnetic properties of Co-doped Pr0.8Ca0.2MnO3 thin films using various spectroscopic techniques. X-ray absorption and hard x-ray photoemission spectroscopy revealed that the substituted Co ions are in the divalent state, resulting in hole doping on the Mn atoms. Studies of element-selective magnetic properties by x-ray magnetic circular dichroism found a large orbital magnetic moment for the Co ions. These spectroscopic studies reveal that the substituted Co ions play several roles of hole doping for Mn, ferromagnetic superexchange coupling between the Co2+ and Mn4+ ions, and orbital magnetism of the Co2+ ions. Competition among these complex interactions produces the unique electronic and magnetic behaviors including enhanced coercivity of the Co-doped Pr0.8Ca0.2MnO3.