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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6747

Title: Magnetic properties of NixCd1-xMn2O4 (0.2<=x<=0.8)
Authors: BHANDAGE, GT
BELAYACHI, A
NOGUES, M
VILLERS, G
DORMANN, JL
KEER, HV
Keywords: random anisotropy
ferromagnets
ferrites
system
alloys
Issue Date: 1997
Publisher: ELSEVIER SCIENCE BV
Citation: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 166(1-2), 141-148
Abstract: The present work deals with the detailed investigations on the magnetic properties of the mixed manganite system: NixCd1-xMn2O4 (0.2 less than or equal to x less than or equal to 0.8). In addition to Mn3+ anisotropy, the random substitution of diamagnetic ion at A-sites introduces further disorder in B-sites resulting in weakening of AB bonds. The results are compared with isotropic canted ferrites and reentrant systems. By applying ferromagnetic scaling law, successive transitions are identified as a function of temperature: paramagnetism to short-range order (or cluster state) to ferrimagnetism or canted magnetic state, depending on concentration range. The effect of random anisotropies gives rise to modified magnetic properties at low temperatures (T < 20 K) which mimic local canted state features, while spin-glass-like phase could exist at very low field and low temperature.
URI: http://dx.doi.org/10.1016/S0304-8853(96)00435-0
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6747
http://hdl.handle.net/10054/6747
ISSN: 0304-8853
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