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Prime Journal of Engineering and Technology Research (PJETR)

ISSN: 2315-5035

Volume 2, Issue 1, pp. 52-57

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Novel behavior of the transport properties of magnetoelectric (ME) nanocomposite



M. A. Ahmed, *N. Okasha, and **N. G. Imam



Materials Science Lab. (1) Physics Department, Faculty of Science, Cairo University, Giza, Egypt
*Physics Department, Faculty of Girls, Ain Shams University, Cairo, Egypt
**Experimental Physics Department, Nuclear Research Center, Atomic Energy Authority, Cairo, Egypt

 Accepted Date

13th May, 2016



Ahmed MA, Okasha N, Imam NG (2016). Novel behavior of the transport properties of magnetoelectric (ME) nanocomposite. Prim. J. Eng. Tech. Res. 2(1): 52-57.



Magnetoelectric (ME) biferroic nanocomposite with the composition (x) BaTiO3 + (1-x) Ni0.5Zn0.5Fe2O4; 0.0 ≤ x≤ 0.7, were prepared using ceramic technique. The presence of two phases, namely ferrite; Ni0.5Zn0.5Fe2O4 (NZF) and ferroelectric; BaTiO3 (BT) was confirmed by X-ray diffraction. The effects of frequency, composition and temperature on the ac and dc electrical conductivity were studied. The variation of dielectric constant () in the frequency range 100 kHz to 5 MHz at different temperatures was investigated. The conduction phenomenon was explained on the basis of electron hopping model where the value of () increases drastically with increasing BaTiO3 content in the composite. The observed values of Seebeck coefficient indicate that the conduction is due to electron hopping mechanism which is agreement with that obtained from dielectric measurements.

Multiferroic; Ferroelectric; Ferromagnetic; Nanocomposite


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