Structure and properties of the ordered double perovskites Sr2MWO6 (M = Co, Ni) by sol-gel route
Data(s) |
2006
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Resumo |
The single-phase double perovskites Sr2MWO6 (M=Co, Ni) were prepared by sol-gel method. Crystal Structure, magnetic properties and the morphology of Sr2CoWO6 and Sr2NiWO6 were investigated. X-ray powder diffraction (XRD) analysis shows single phase structure for Sr2MWO6 (M=Co, Ni) without any traces of impurities and the crystal structure of all the samples belongs to the tetragonal I4/m space group. SEM image for Sr2MWO6 (M=Co, Ni) indicate that the grains are homogeneous and connect each other very well. The Neel temperature for Sr2CoWO6 and Sr2NiWO6 are 23 K and 59 K, respectively. Magnetic measurements showed that the magnetic moment in these double perovskites originates mainly from the interactions between Ni ions and Co ions. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Tian SZ;Zhao JC;Qiao CD;Ji XL;Jiang BZ.Structure and properties of the ordered double perovskites Sr2MWO6 (M = Co, Ni) by sol-gel route,MATERIALS LETTERS,2006,60(21-22):2747-2750 |
Palavras-Chave | #MAGNETIC-PROPERTIES #POWDER DIFFRACTION #MAGNETORESISTANCE #SR2FEMOO6 #OXIDES #FE #TRANSITION #DISORDER |
Tipo |
期刊论文 |