Sign reversal of magnetization in Mn substituted SmCrO sub(3)

Single phase samples of orthorhombic SmCr sub(1-x)Mn sub(x)O sub(3) compounds were prepared for x=0 to 0.50. Analysis of X-ray diffraction patterns shows a systematic increase in lattice parameters with increase in Mn concentration. The phenomenon of magnetization reversal is observed for x=0.10-0.3...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 405; pp. 209 - 213
Main Authors Dash, Bibhuti B, Ravi, S
Format Journal Article
LanguageEnglish
Published 01.05.2016
Subjects
Diffraction patterns
Ferromagnetism
Filing
Lattice parameters
Magnetism
Magnetization
Magnetization reversal
X-rays
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Summary:Single phase samples of orthorhombic SmCr sub(1-x)Mn sub(x)O sub(3) compounds were prepared for x=0 to 0.50. Analysis of X-ray diffraction patterns shows a systematic increase in lattice parameters with increase in Mn concentration. The phenomenon of magnetization reversal is observed for x=0.10-0.30 samples with a maximum magnetic compensation temperature of 126 K. The mechanism of magnetization reversal is explained by considering the competition between the paramagnetic moments of Mn super(3+) and Sm super(3+) ions under the influence of negative internal field due to antiferromagnetically ordered Cr super(3+) ions and the canted ferromagnetic component of Cr super(3+) ions. For x greater than or equal to 0.40, the samples exhibit ferromagnetic like behavior.
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ISSN:0304-8853
DOI:10.1016/j.jmmm.2015.12.047