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dc.contributor.authorSundarayya, Y-
dc.contributor.authorMandal, P-
dc.contributor.authorSundaresan, A-
dc.contributor.authorRao, C N R-
dc.identifier.citationJournal of Physics: Condensed Matter 23(43), 436001-(1-7) (2011)en_US
dc.descriptionRestricted Accessen_US
dc.description.abstractThe first-order spin-reorientation transition in the Mn-substituted yttrium orthoferrites, YFe(1-x)Mn(x)O(3) (x = 0.1, 0.15 and 0.2), has been investigated using (57)Fe Mossbauer spectroscopy. Owing to its large anisotropy, substitution of Mn(3+) ions in YFeO(3) induces a spin-reorientation transition from the low-temperature antiferromagnetic state to a high-temperature weak ferromagnetic state. With increasing x, the spin-reorientation transition temperature (T(SR)) increases whereas the Neel temperature (T(N)) decreases. Analysis of the Mossbauer spectra unambiguously confirms the occurrence of spin reorientation relative to crystal axes. At a given temperature, the mean hyperfine field decreases with the increasing Mn concentration. The variation of canting angle with temperature for YFe(0.85)Mn(0.15)O(3) has been estimated.en_US
dc.publisherIOP Publishing Ltden_US
dc.rights© 2011 IOP Publishing Ltden_US
dc.subjectPhase Coexistenceen_US
dc.titleMossbauer spectroscopic study of spin reorientation in Mn-substituted yttrium orthoferriteen_US
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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