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Pressure effects on oxygen-deficient Ba-substituted cobaltites

Published online by Cambridge University Press:  14 November 2013

V. Sikolenko ,
V.V. Efimov ,
D. Többens ,
S. Schorr ,
C. Ritter ,
M.V. Bushinsky  and
I.O. Troyanchuk
V. Sikolenko
Affiliation:
Karlsruhe Institute of Technology, Karlsruhe, Germany Joint Institute for Nuclear Research, Dubna, Russia Helmholtz Center Berlin, Germany
V.V. Efimov
Affiliation:
Joint Institute for Nuclear Research, Dubna, Russia
D. Többens
Affiliation:
Helmholtz Center Berlin, Germany
S. Schorr
Affiliation:
Helmholtz Center Berlin, Germany
C. Ritter
Affiliation:
Institute Laue Langevin, Grenoble, France
M.V. Bushinsky
Affiliation:
Scientific-Practical Material Research Center of NAS of Belarus, Minsk, Belarus
I.O. Troyanchuk
Affiliation:
Scientific-Practical Material Research Center of NAS of Belarus, Minsk, Belarus

Abstract

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Neutron diffraction studies of the La0.5Ba0.5CoO2.8 at the different temperatures has been performed. This solid solution crystallizes in the cubic structure (Pm3m space group) and exhibits below TN ~ 250K G-type antifferomagnetic ordering. Applied pressure suppresses magnetic ordering. Anomalous changes of the lattice parameters under pressure have been found.

Keywords

high pressurecobaltitesRietveld analysesneutron diffraction

Information

Type
Technical Articles
Information
Powder Diffraction , Volume 28 , Supplement S2 , September 2013 , pp. S126 - S132
Copyright
Copyright © International Centre for Diffraction Data 2013 

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