Title of article :
Synthesis and characterization of the oxynitride pyrochlore - Sm2Mo2O3.83N3.17
Author/Authors :
Veith، نويسنده , , G.M. and Greenblatt، نويسنده , , A. M. J. Croft، نويسنده , , M. and Goodenough، نويسنده , , J.B.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Abstract :
Sm2Mo2O3.83N3.17, the first molybdenum oxynitride pyrochlore, was synthesized by heating the Sm2Mo2O7 pyrochlore in flowing ammonia at 625°C for 24 hours. Sm2Mo2O3.83N3.17 forms with the cubic pyrochlore structure, space group Fd3m (a = 10.4975 إ). The sample is semiconducting and the temperature-dependent magnetic susceptibility follows Curie-Weiss behavior. X-ray absorption near-edge spectroscopy measurements indicate that in the oxynitride, molybdenum has a formal oxidation state significantly larger than 4+.
Keywords :
C. XANES , D. Magnetic properties , A. Nitrides , D. Electrical properties , B. Chemical synthesis
Journal title :
Materials Research Bulletin
Journal title :
Materials Research Bulletin
