Magnetic and Dielectric Properties of Mg Substituted Nanocrystalline Li Ferrite Obtained by the Method Auto-Ignition Sol-Gel

B.K. Ostafiychuk; L.S. Kaykan; Y.S. Kaykan; A.B. Hrubyak; M.O. Nykoliuk

doi:10.15330/pcss.18.1.102-110

Authors

B.K. Ostafiychuk Vasyl Stefanyk Precarpathian National University
L.S. Kaykan Vasyl Stefanyk Precarpathian National University
Y.S. Kaykan Vasyl Stefanyk Precarpathian National University
A.B. Hrubyak Vasyl Stefanyk Precarpathian National University
M.O. Nykoliuk Vasyl Stefanyk Precarpathian National University

DOI:

https://doi.org/10.15330/pcss.18.1.102-110

Keywords:

ferrite spinel, combustion synthesis, microstructure

Abstract

The ultrafine particles of magnesium-substituted lithium ferrites of the general formula were synthesized by a low-temperature gel-citrate auto-combustion method. The structural characteristics of the samples were obtained on the basis of X-ray diffraction (XRD) and SEM (emission electron spectroscopy) analyzes. XRD studies have confirmed the formation of a single-phase spinel structure with crystallite sizes around 15 - 30 nm. The M-H loop was recorded using an F-64 ferrometer for all formulations at room temperature and 50 Hz and the hysteresis parameters obtained. The hysteresis loop of the obtained samples showed a clear saturation at the applied field ± 60 E and by its very nature the loop is very symmetrical. Dielectric parameters such as dielectric steel, resistivity (s) and conductivity of samples () were investigated as a function of frequency in the range of 0.01 Hz to 100 kHz and in the temperature range 293 - 493 K using an impedance spectrometer. The dielectric constant of the samples revealed a normal frequency dependence of the dielectric, indicating that the dispersion is due to the polarization of the boundaries of the Maxwell-Wagner type grains and the jump of the electron between ions.

References

[1] M. Raghasudha, D. Ravinder, P. Veerasomaiah, J. Magn. Magn. Mater. 355, 210 (2014).
[2] A. K. M. Akther Hussain, M. Seki, T. Kawai, H. Tabala, J. Appl. Phys. 96 (2004) 1273–1275.
[3] M. A. Ei Hiti, A. I. Ei Shora, S. M. Hammad, Mater. Sci. Technol. 13, 625 (1997).
[4] B. K. Kuanr, J. Magn. Magn. Mater. 163, 164 (1996).
[5] S. C. Watawe, B. D. Sarwade, S. S. Bellad, B. D. Sutar, B. K. Chougule, J. Magn. Magn. Mater. 214(1–2), 55 (2000).
[6] Mathew George, Swapnw S. Nair, Asha Mary John, P. A. Joy, M. R. Anantharaman, J. Phys. D: Appl.Phys. 39, 900 (2006).
[7] M. U. Rana, T. Abbas, Mater. Lett. 57, 925 (2002).
[8] Qi Chen, A. J. Rondinone, B. C. Chakoumakos, Z. J. Zhang, J. Magn. Magn. Mater. 194, 1 (1999).
[9] M. E. Rabanal, A. Várez, B. Levenfeld, J. M. Torralba, J. Mater. Process. Technol. 143, 470 (2003).
[10] T. Sasaki, S. Ohara, T. Naka, J. Vejpravova, V. Sechovsky, M. Umetsu, S. Takami, B. Jeyadevan, T. Adschiri, J. Supercrit. Fluids 53, 92 (2010).
[11] E. J. Choi, Y. Ahn, S. Kim, D. H. An, K. U. Kang, B. G. Lee, K. S. Baek, H. N. Oak, J. Magn. Magn. Mater. 262, L198 (2003).
[12] A. Pradeep, C. Thangasamy, G. Chandrasekaran, J. Mater. Sci.: Mater. Electron. 15, 769 (2004).
[13] B. P. Jacob, S. Thankachan, S. Xavier, E. M. Mohammed, J. Alloy. Compd. 541, 29 (2012).
[14] A. Verma, T. C. Goel, R. G. Mendiratta, P. Kishan, J. Magn. Magn. Mater. 208, 13 (2000).
[15] K. V. Manukyan, Y. S. Chen, S. Rouvimov, Peng Li, Xiang Li, Sining Dong, Xinyu Liu, J. K. Furdyna, Alexei Orlov, G. H. Bernstein, W. Porod, S. Roslyakov, A. S. Mukasyan, J. Phys. Chem. C118(29), 16264 (2014).
[16] S. A. Saafan, S. T. Assar, B. M. Moharram, M. K. ElNimr, J. Magn. Magn. Mater. 322, 628 (2010).
[17] Mamata Maisnam, Sumitra Phanjoubam, Solid State Commun. 152, 320 (2012).
[18] B.K. Ostafiychuk et al., Physics and Chemistry of Solid State, 17(1), 70 (2016).
[19] I. Soibam, S. Phanjoubam, C. Prakash, J. Alloy. Compd. 475, 328 (2009).
[20] I. H. Gul, A. Z. Abbasi, F. Amin, M. Anis-ur Rehman, A. Maqsood, J. Magn. Magn. Mater. 311, 494 (2007).
[21] M. A. Gabal, Mater. Res. Bull. 45, 589 (2010).
[22] R. C. Kambale, K. M. Song, Y. S. Koo, N. Hur, J. Appl. Phys. 110, 053910 (2011).