Sundarayya, Y ; Mandal, P ; Sundaresan, A ; Rao, C N R (2011) Mössbauer spectroscopic study of spin reorientation in Mn-substituted yttrium orthoferrite Journal of Physics: Condensed Matter, 23 (43). p. 436001. ISSN 0953-8984
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Official URL: http://doi.org/10.1088/0953-8984/23/43/436001
Related URL: http://dx.doi.org/10.1088/0953-8984/23/43/436001
Abstract
The 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 Mössbauer 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 Néel temperature (T(N)) decreases. Analysis of the Mössbauer 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.
Item Type: | Article |
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Source: | Copyright of this article belongs to Institute of Physics Publishing. |
ID Code: | 120061 |
Deposited On: | 22 Jun 2021 06:09 |
Last Modified: | 22 Jun 2021 06:09 |
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