Magnetic order and electronic structure of the 5d(3) double perovskite Sr2ScOsO6

Article

关键词: NEUTRON-DIFFRACTION;    CRYSTAL;   

DOI  :  10.1103/PhysRevB.91.100406

来源: SCIE

【 摘 要 】

The magnetic susceptibility, crystal and magnetic structures, and electronic structure of the double perovskite Sr2ScOsO6 are reported. Using both neutron and x-ray powder diffraction we find that the crystal structure is monoclinic P2(1)/n from 3.5 to 300 K. Magnetization measurements indicate an antiferromagnetic transition at T-N = 92 K, one of the highest transition temperatures of any double perovskite hosting only one magnetic ion. Type I antiferromagnetic order is determined by neutron powder diffraction, with an Os moment of only 1.6(1)mu(B), close to half the spin-only value for a crystal field split 5d electron state with a t(2g)(3) ground state. Density functional calculations show that this reduction is largely the result of strong Os-O hybridization, with spin-orbit coupling responsible for only a similar to 0.1 mu(B) reduction in the moment.

【 授权许可】

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