Document Detail


High-pressure synthesis of the double perovskite Sr(2)FeMoO(6): increment of the cationic ordering and enhanced magnetic properties.
MedLine Citation:
PMID:  21825469     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The double perovskite Sr(2)FeMoO(6) has been prepared in polycrystalline form by high-pressure methods, starting from a precursor developed via a citrate technique, containing an elevated degree of anti-site disordering. The application of high external pressure (2 GPa) to Sr(2)FeMoO(6) promotes the long distance Fe/Mo cationic order, due to the smaller lattice volume of the ordered sample. Both the disordered perovskite obtained at ambient pressure and the sample synthesized under high-pressure methods have been characterized by means of x-ray diffraction, neutron powder diffraction and magnetic measurements. The magnetic properties of the two oxides have been compared; the specimen prepared under high pressure not only presents an improved cationic ordering, but also displays a superior saturation magnetization and a sharpener ferromagnetic transition at a significantly high temperature of 430 K.
Authors:
M Retuerto; M J Martínez-Lope; M García-Hernández; J A Alonso
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Publication Detail:
Type:  Journal Article     Date:  2009-04-06
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  21     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2009 May 
Date Detail:
Created Date:  2011-08-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  186003     Citation Subset:  -    
Affiliation:
Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain.
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