Share This Article:

Structural and Magnetic Properties of BaCoxFe12xO19 (x = 0.2, 0.4, 0.6, &1.0) Nanoferrites Synthesized via Citrate Sol-Gel Method

Abstract Full-Text HTML Download Download as PDF (Size:439KB) PP. 101-104
DOI: 10.4236/wjcmp.2011.13016    4,650 Downloads   11,784 Views   Citations

ABSTRACT

Cobalt substituted barium ferrites, BaCoxFe12-xO19 (x = 0.2, 0.4, 0.6 & 1.0) have been synthesized via citrate sol-gel method. All the samples have been annealed at 1000℃ and characterized using Fourier Transform Infra Red spectroscopy, X-Ray Diffractography and Vibrating Sample Magnetometry. The FT-IR spectra of the samples exhibit two frequency bands in the range of 580 cm-1 and 460 cm-1, corresponding to the formation of metal oxides. The XRD studies reveal a crystallite size of ~55 nm. The saturation magnetization decreases from 96.3 emu/g to 47.8 emu/g with increasing concentration of cobalt due to the lower magnetic moment of Co2+ (3 µB) as compared to Fe3+ (5 µB). The coercivity values also show a decreasing behaviour from 3800 Oe to 1750 Oe with increasing cobalt concentration due to reduced magnetocrystalline anisotropy.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

S. Singhal, K. Kaur, S. Jauhar, S. Bhukal and S. Bansal, "Structural and Magnetic Properties of BaCoxFe12xO19 (x = 0.2, 0.4, 0.6, &1.0) Nanoferrites Synthesized via Citrate Sol-Gel Method," World Journal of Condensed Matter Physics, Vol. 1 No. 3, 2011, pp. 101-104. doi: 10.4236/wjcmp.2011.13016.

References

[1] M. Koleva, P. Atanasov, R. Tomov, O. Vankov, C. Matin, C. Ristoscu, I. Mihailescu, D. Iorgov, S. Angelova, C. Ghelev and N. Mihailov, “Pulsed Laser Deposition of Barium Hexaferrite (BaFe12O19) Thin Films,” Applied Surface Science, Vol. 154-155, 2000, pp. 485-491. doi:10.1016/S0169-4332(99)00404-3
[2] H. S?zeri, ?. Kü?ük and H. ?zkan, “Improvement in Magnetic Properties of La Substituted BaFe12O19 Particles Prepared with an Unusually Low Fe/Ba Molar Ratio,” Journal of Magnetism and Magnetic Materials, Vol. 323, No. 13, 2011, pp. 1799-1804. doi:10.1016/j.jmmm.2011.02.012
[3] R. Carey, P. A. Gago-Sandval, D. M. Newman and B. W. J. Thomas, “The Magnetic and Magneto-Optical Properties of Co, Cr, Mn, and Ni Substituted Barium Ferrite Films,” Journal of Applied Physics, Vol. 75, No. 10, 1994, pp. 6789-6791. doi:10.1063/1.356831
[4] T. Yamauchi, Y. Tsukahara, T. Sakata, H. Mori, T. Chikata, S. Katoh and Y. Wada, “Barium Ferrite Powders Prepared by Microwave-Induced Hydrother-mal Reaction and Magnetic Property,” Journal of Magnetism and Mag- netic Materials, Vol. 321, No. 1, 2009, pp. 8-11. doi:10.1016/j.jmmm.2008.07.005
[5] X. Ping, H. Xijiang and M. Wang, “Synthesis and Magnetic Properties of BaFe12O19 Hexaferrite Nanoparticles by a Reverse Microemulsion Tech-nique,” The Journal of Physical Chemistry C, Vol. 111, No. 16, 2007, pp. 5866- 5870. doi:10.1021/jp068955c
[6] D. Lisjak, K. Bobzin, K. Richardt, M. Begard, G. Bolelli, L. Lusvarghi, A. Hujanen, P. Lintunen, M. Pasquale, E. Olivetti, M. Drofenik and T. Schlafer, “Preparation of Barium Hexaferrite Coatings Using Atmospheric Plasma Spraying,” Journal of the European Ceramic Society, Vol. 29, No. 11, 2009, pp. 2333-2341. doi:10.1016/j.jeurceramsoc.2009.01.028
[7] V. K. Sanda-ranarayanan and D. C. Khan, “Mechanism of the Formation of Nanoscale M-Type Barium Hexaferrite in the Citrate Precursor Method,” Journal of Magnetism and Magnetic Materials, Vol. 153, No. 2, 1996, pp. 337- 346. doi:10.1016/0304-8853(95)00537-4
[8] G. Mendoza-Suarez, K. K. Johal, H. Mancha-Mohinar, J. I. Escalante-Garcia and M. M. Cisneros-Guerrero, “Magnetic Properties of Zn-Sn-Substituted Ba-Ferrite Powders Prepared by Ball Mill-ing,” Materials Research Bulletin, Vol. 36, No. 15, 2001, pp. 2597-2603. doi:10.1016/S0025-5408(01)00751-6
[9] J. Kresisel, H. Vincent, F. Tasset, M. Pate and J. P. Ganne, “An Investigation of the Magnetic Anisotropy Change in BaFe12?2xTixCoxO19 Single Crystals,” Journal of Magnetism and Magnetic Materials, Vol. 224, No. 1, 2001, pp. 17-29. doi:10.1016/S0304-8853(00)01355-X
[10] G. B. Teh, S. Na-galingam and D. A. Jefferson, “Preparation and Studies of Co(II) and Co(III)-Substituted Barium Ferrite Prepared by Sol-Gel Method,” Materials Chemistry and Physics, Vol. 101, No. 1, 2007, pp. 158-162. doi:10.1016/j.matchemphys.2006.03.008
[11] A. Ghasemi and A. Morisako, “Static and High Frequency Magnetic Properties of Mn-Co-Zr Substituted Ba-Ferrite,” Journal of Alloys and Compounds, Vol. 456, No. 1-2, 2008, pp. 485-491. doi:10.1016/j.jallcom.2007.02.101
[12] X. F. Yang, Q. L. Li, J. X. Zhao, B. D. Li and Y. F. Wang, “Preparation and Magnetic Properties of Controllable-Morphologies Nano-SrFe12O19 Par-ticles Prepared by Sol-Gel Self-Propagation Synthesis,” Jour-nal of Alloys and Compounds, Vol. 475, No. 1-2, 2009, pp. 312-331. doi:10.1016/j.jallcom.2008.08.019
[13] L. A. Garc′?a-Cerda, O. S. Rodr′?guez-Fernández, and P. J. Reséndiz-Hernández, “Study of SrFe12O19 Synthesized by the Sol-Gel Method,” Journal of Alloys and Compounds, Vol. 369, No. 1-2, 2004, pp. 182-184. doi:10.1016/j.jallcom.2003.09.099
[14] M. J. Iqbal and Bar-ket-ul-Ain, “Synthesis and Study of Physical Properties of Zr4+-Co2+ Co-doped Barium Hexagonal Ferrites,” Materials Science and Engineering B, Vol. 164, No. 1, 2009, pp. 6-11.
[15] B. D. Cullity, “Elements of X-Ray Diffraction,” Addison-Wesly Publishing, Boston, 1976.
[16] M. Kishimoto, S. Kitahata and M. Amemiya, “Effect of Magnetic Anisotropy of Ba-Ferrite Particles on Squareness of Perpendicular Re-cording Media,” Journal of Applied Physics, Vol. 61, No. 8, 1987, pp. 3875-3877. doi:10.1063/1.338626
[17] G. Mendoza-Suarez, L. P. Rivas-Vazquez, J. C. Corral-Huacuz, A. F. Fuentes and J. I. Escalante-Garcia, “Magnetic Properties and Microstructure of BaFe11.6?2x- TixMxO19 (M = Co, Zn, Sn) Compounds,” Physica B: Condensed Matter, Vol. 339, No. 2-3, 2003, pp. 110-118.

  
comments powered by Disqus

Copyright © 2019 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.