Rai, R. and Sharma, S. and Soni, N. C and Choudhary, R. N. P (2006) Investigation of structural and dielectric properties of (La, Fe)-doped PZT ceramics. Physica B: Condensed Matter, 382. 252-256. ISSN 0921-4526

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Abstract

Polycrystalline samples of iron doped lead lanthanum zirconium titanate (PLFZT) with a general formula Pb-0.9(La1-yFey)(0.1) (Zr0.55Ti0.45)(0.975)O-3, [y = 0.0,0.3,0.5,0.7] near the morphotropic phase boundary have been synthesized by a high-temperature, solid-state reaction technique. Preliminary X-ray structural study of the compounds show the formation of tetragonal structure. Detailed studies of dielectric constant (e) and tangent loss (tan 6) as a function of frequency (102 Hz to 10 kHz) at room temperature (RT) and temperature (RT-350 degrees C) at 10 kHz suggest that compounds undergo ferroelectric-paraelectric phase transition of diffuse type. The activation energy (Ea) of the samples was calculated from the plot of AC conductivity versus inverse of absolute temperature. The temperature dependence of resistivity shows that the compounds have negative temperature coefficient of resistance.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	11 May 2018 05:09
Last Modified:	11 May 2018 05:09
URI:	http://npl.csircentral.net/id/eprint/2494

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