Dielectric, electrical and magnetoelectric characterization of (x)Ni{sub 0.8}Zn{sub 0.2}Fe{sub 2}O{sub 4} + (1 - x)Pb{sub 0.93}La{sub 0.07}(Zr{sub 0.60}Ti{sub 0.40})O{sub 3} composites
- Novel Materials Research Laboratory, Department of Physics, University of Pune, Pune 411007 (M.S.) (India)
The structural, electrical, dielectric, magnetic and magnetoelectric properties of (x)Ni{sub 0.8}Zn{sub 0.2}Fe{sub 2}O{sub 4} + (1 - x)Pb{sub 0.93}La{sub 0.07}(Zr{sub 0.60}Ti{sub 0.40})O{sub 3} (x = 0, 0.15, 0.30, 0.45 and 1) have been studied by means of various experimental techniques. Polycrystalline samples of this series have been prepared by the double sintering ceramic method. X-ray diffraction data analysis revealed purity of the composites. Microstructural analysis using scanning electron microscopy mode depicts the presence of two phases in contact with each other. Dielectric properties were studied at and well above room temperature. Temperature dependent variation of the dielectric constant show diffused phase transition which can be well described by fitting the Lorentz-type relation, {epsilon}{sub A}/{epsilon}=1+(T-T{sub A}){sup 2}/2{delta}{sub A}{sup 2}. Observation of well-saturated ferroelectric hysteresis loop and magnetic hysteresis loop for composites indicates that ferroelectric and magnetic ordering exist simultaneously at room temperature. The static value of magneto electric voltage coefficient ({alpha}{sub E}) has been studied as a function of magnetic field at room temperature for all the composites. The maximum value of {alpha}{sub E} is 7.53 mV/(cm Oe) for 85% PLZT-15% NZFO composites.
- OSTI ID:
- 22207353
- Journal Information:
- Materials Research Bulletin, Vol. 45, Issue 8; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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