Abstract
We report the magnetic properties of Mg x Mn1−x Fe2O4 (0≤x≤1.0) nanosize compounds with particle sizes between 8 nm and 15 nm. The evolutions of the properties as a function of composition have been investigated by X-ray diffraction, Mössbauer, and SQUID magnetometry. Pure cubic spinel could be obtained under a low reaction temperature of 200°C in all the samples. Impurity phases have been observed in compounds annealed at above 900°C. Magnetic relaxation is observed in samples with particles of about 8 nm. The spectra with particle sizes larger than 10 nm could be fitted with at least two sextets attributed to Fe3+ ions on tetrahedral (A) and octahedral (B) sites. The magnetization measurement indicates superparamagnetic behavior in nanosized compounds.
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References
Singh, M.: J. Magn. Magn. Mater. 299, 397 (2006)
Lakshman, A., Rao, P., Rao, K.: J. Magn. Magn. Mater. 284, 352 (2004)
Kumar, G., Chand, J., Verma, S., Singh, M.: J. Phys. D, Appl. Phys. 42, 155001 (2009)
Chen, Q., Rondinone, A.J., Chakoumakos, B.C., Zhang, Z.J.: J. Magn. Magn. Mater. 194, 1 (1999)
Ashiq, M.N., Saleem, S., Malana, M.A., Anis-Ur-Rehman, J.: J. Alloys Compd. 486, 640 (2009)
Chinnasamy, C.N., Narayasanasamy, A., Ponpandian, N.: Chattopdhyay Shinoda, K., Jeyadevan, B., Tohji, K., Nakatsuka, K., Furubayashi, T., Nakatani, I.: Phys. Rev. B 63, 184108 (2001)
Mørup, S.S.: Hyperfine Interact. 60, 959 (1990)
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Msomi, J.Z., Moyo, T. & Abdallah, H.M.I. Magnetic Properties of Mg x Mn1−x Fe2O4 Nanoferrites. J Supercond Nov Magn 25, 2643–2646 (2012). https://doi.org/10.1007/s10948-011-1235-0
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DOI: https://doi.org/10.1007/s10948-011-1235-0