Structural Transition and Magnetic Properties of (Sr2-3xLa2xBax)FeMoO6

Abstract:

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Ordered double perovskite oxides (Sr2-3xLa2xBax)FeMoO6 (0≤x≤0.3) have been investigated in this work. X-ray powder diffraction reveals that the crystal structure of the compounds changes from a tetragonal I4/m lattice to a cubic Fm 3m lattice around x=0.2. Though the nominal average size of the A site cation of (Sr2-3xLa2xBax)FeMoO6 is designed to be almost independent of x, the refinements of the crystal structure show that the lattice constants increase with x in both the tetragonal and the cubic phase regions due to electron doping. As the x increases, the degree of cationic ordering on the B site is decreased pronouncedly, while the Curie temperature of the compounds is nearly unchanged.

Info:

Periodical:

Materials Science Forum (Volumes 663-665)

Edited by:

Yuan Ming Huang

Pages:

1036-1040

DOI:

10.4028/www.scientific.net/MSF.663-665.1036

Citation:

Z. F. Xu et al., "Structural Transition and Magnetic Properties of (Sr2-3xLa2xBax)FeMoO6", Materials Science Forum, Vols. 663-665, pp. 1036-1040, 2011

Online since:

November 2010

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$35.00

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