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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
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Abstract

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
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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