کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1333049 | 979063 | 2008 | 6 صفحه PDF | دانلود رایگان |
A new magnetoplumbite-type hexagonal cobalt oxide, SrCo12O19, has been synthesized at a high pressure of 3 GPa and its structural and magnetic properties have been studied using single crystalline samples. Bond-valence calculations for five crystallographically independent Co sites show a rather wide charge distribution from +2.15 to +3.50. Magnetic measurements have revealed anisotropic magnetic behavior below a magnetic ordering temperature of 80 K. Comparative discussions on the structure–property relationship for SrCo12O19 and related compounds suggest the presence of localized spins with a uniaxial anisotropy at the trigonal bipyramidal site.
A new magnetoplumbite-type hexagonal cobalt oxide, SrCo12O19, has been synthesized by a high-pressure technique. Bond-valence calculations based on a single crystal X-ray structure refinement show a rather wide charge distribution for Co sites from +2.15 (Co(4)) to +3.50 (Co(1)).Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 181, Issue 5, May 2008, Pages 1273–1278