Cation distribution: a key to ascertain the magnetic interactions in a cobalt substituted Mg-Mn nanoferrite matrix
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Cation distribution: a key to ascertain the magnetic interactions in a cobalt substituted Mg-Mn nanoferrite matrix
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| Creator |
Kumar, Gagan
Kotnala, R. K. Shah, Jyoti Kumar, Vijay Kumar, Arun Dhiman, Pooja Singh, M. |
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| Subject |
Physical Chemistry
Atomic and Molecular Physics |
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| Description |
The effect of Co2+ substitution into nanocrystalline Mg-Mn ferrite synthesized by a solution combustion technique has been studied. The cation distribution has been inferred from X-ray diffraction, the magnetization technique, and Mossbauer spectroscopy. The X-ray analysis and cation distribution data have been used to investigate the detailed structural parameters such as hopping lengths, ionic radii of tetrahedral and octahedral sites, oxygen positional parameter, site bond as well as edge lengths, bond lengths, and bond angles. The variation in the theoretically predicted bond angles suggested the strengthening of the A-B super-exchange interactions, and the same has been supported by M-H and M-T, as well as by Mossbauer studies. The ZFC-FC study revealed that anisotropy increases with the incorporation of cobalt ions. The values of magneton number, theoretical lattice parameter, and Curie temperature that have been calculated by using the cation distribution are found to match well with the experimentally obtained values.
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| Publisher |
Royal Society of Chemistry
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| Date |
2017-07-07
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2630/1/Cation%20distribution%20a%20key%20to%20ascertain%20the%20magnetic%20interactions%20in%20a%20cobalt%20substituted%20Mg%20Mn%20nanoferrite%20matrix.pdf
Kumar, Gagan and Kotnala, R. K. and Shah, Jyoti and Kumar, Vijay and Kumar, Arun and Dhiman, Pooja and Singh, M. (2017) Cation distribution: a key to ascertain the magnetic interactions in a cobalt substituted Mg-Mn nanoferrite matrix. Physical Chemistry Chemical Physics, 19 (25). pp. 16669-16680. ISSN 1463-9076 |
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| Relation |
http://npl.csircentral.net/2630/
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