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Electrical behaviour of 0.80Pb[(Mg,Zn)1/3Ta2/3]O3–0.20PbTiO3 relaxor

✍ Scribed by S. Prasad; K. Prasad; S.N. Choudhary; T.P. Sinha

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
306 KB
Volume
364
Category
Article
ISSN
0921-4526

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✦ Synopsis

Polycrystalline 0.80Pb[(Mg 2/3 Zn 1/3 ) 1/3 Ta 2/3 ]O 3 -0.20PbTiO 3 (PMZT-PT) having a tetragonal perovskite type structure was prepared by the high temperature solid-state reaction method. Dielectric studies showed the relaxor behaviour with diffuse phase transition. High value of m 48000 was realized with T m (phase transition temperature) at 57 1C at 1 kHz. The frequency dependence of T m has been modeled using Vogel-Fulcher relation. The dielectric relaxation in the present system was found analogous to the magnetic relaxation in spin-glass system. Complex impedance analysis indicated the system undergoing a polydispersive non-Debye type dielectric relaxation. The relaxation behaviour in PMZT-PT was also probed through admittance spectroscopy.

📜 SIMILAR VOLUMES

Refractive index dispersion of relaxor f
Refractive index dispersion of relaxor ferroelectric 0.9Pb(Zn1/3Nb2/3)O3-0.1PbTiO3 single crystal
✍ Chongjun He; Feng Xu; Jiming Wang; Youwen Liu 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 150 KB 👁 1 views

## Abstract The refractive indices of 0.9Pb(Zn~1/3~Nb~2/3~)O~3~‐0.1PbTiO~3~ single crystal at different wavelengths have been measured by the minimum deviation method at room temperature, and their dispersion equations are obtained. The parameters connected to the energy band structure are obtained