Crystal and magnetic structure of substituted lanthanum cobaltites
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1997-01-01
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Abstract
The crystal and magnetic structures of the lanthanum cobaltites La0.6Sr0.4CoO3, La0.6,Sr0.4Co0.9Fe0.1O3 and La0.6Ba0.4Co0.9Fe0.1O3 have been studied by neutron powder diffraction at temperatures of 2, 300 and 900 K. All compounds undergo a phase transition from cubic to rhombohedral structure. Below the room temperature La0.6Sr0.4CoO3 becomes ferromagnetic while for the components with 10% Fc substituted for Co, we found an antiferromagnetic order. © 1998 Elsevier Science B.V. All rights reserved.