Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1812858 | Physica B: Condensed Matter | 2010 | 5 Pages |
Crystal structure, infrared (IR) spectroscopic characterization and electrical property of double perovskite Sr2CoSbO6 were investigated. The polycrystalline double perovskite Sr2CoSbO6 was prepared with standard solid-state reaction method in air, characterized by X-ray powder diffraction (XRD) and IR spectroscopy. The room-temperature structure was determined by the Rietveld method using XRD data. The result shows that the structure is not rhombohedral as was previously reported. It is monoclinic (space group P21/n) with a=5.5822(1) Å, b=5.6011(1) Å, c=7.8981(1) Å, and β=89.839(1)°. The refined Co–O and Sb–O average bond lengths are 2.01 and 1.99 Å, respectively. The valence states of cobalt and antimony are likely to be Co(III) and Sb(V) in Sr2CoSbO6.