Inhomogeneous magnetic behavior of Pr0.7Ca0.3CoO3 and Nd0.7Ca0.3CoO3

Kundu, Asish K. ; Sampathkumaran, E. V. ; Gopalakrishnan, K. V. ; Rao, C. N. R. (2004) Inhomogeneous magnetic behavior of Pr0.7Ca0.3CoO3 and Nd0.7Ca0.3CoO3 Journal of Magnetism and Magnetic Materials, 281 (2-3). pp. 261-266. ISSN 0304-8853

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S03048...

Related URL: http://dx.doi.org/10.1016/j.jmmm.2004.04.112

Abstract

Unlike La0.7Ca0.3CoO2.97, Pr0.7Ca0.3CoO3 and Nd0.7Ca0.3CoO2.95 do not show distinct ferromagnetic transitions, but instead they exhibit very low magnetic moments down to 50 K. A detail study of magnetic properties of Pr0.7Ca0.3CoO3 and Nd0.7Ca0.3CoO2.95 shows that the materials are inhomogeneous, exhibiting properties similar to those of frustrated magnetic systems. In both these cobaltates, small ferromagnetic clusters seem to be present in an antiferromagnetic host.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Transition-metal Oxides; Rare-earth Compounds; Magnetic Properties; Spin-glasses
ID Code:42379
Deposited On:02 Jun 2011 12:45
Last Modified:02 Jun 2011 12:45

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