Record number :
1333401
Title of article :
Synthesis, structure and magnetic properties of A2MnB′O6 (A=Ca, Sr; B′=Sb, Ta) double perovskites
Author/Authors :
Tapas Kumar Mandal، نويسنده , , Viktor V. Poltavets، نويسنده , , Mark Croft، نويسنده , , Martha Greenblatt، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
7
From page :
2325
To page :
2331
Abstract :
A2MnB′O6 (A=Ca, Sr; B=Sb, Ta) double perovskites have been synthesized and their structural and magnetic properties have been investigated. Rietveld refinement of the powder X-ray diffraction data for Sr2MnSbO6 indicated significant ordering of Mn and Sb at the B-site while all other phases showed mostly a random distribution of the B-site cations. X-ray absorption spectroscopic data established the presence of Mn in the 3+ and Sb/Ta in the 5+ oxidation states in all the phases. Magnetic susceptibility data indicated ferromagnetic correlations for all the A2MnB′O6 phases with Weiss temperatures varying from 64 to 107 K.
Keywords :
X-ray absorption spectroscopy (XAS) , crystal structure , Magnetic properties , X-ray diffraction , Oxide
Journal title :
JOURNAL OF SOLID STATE CHEMISTRY
Link To Document :