Investigating the physical meanings of diffused phase transition models

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Title:	Investigating the physical meanings of diffused phase transition models
Authors:	Hong, Cheng-Shong Chu, Sheng-Yang Tsai, Cheng-Che Su, Wen-Chang 蔡震哲 (東方設計學院電子與資訊系)
Contributors:	東方設計學院電子與資訊系
Keywords:	Diffused phase transition relaxor ferroelectric model
Date:	2011-02
Issue Date:	2015-07-07 14:21:46 (UTC+8)
Abstract:	The empirical laws, ɛ = ɛm/[1 + (T − Tm)γ/2σ2] and ɛ = ɛm/{1 + [(T − Tm)/Δ]ξ}, proposed by Burfoot et al. and Eiras et al. are usually used to describe the dielectric diffused characteristics of relaxor ferroelectric materials. In this study, we continue our previous work to present the physical and mathematical meanings of the parameters in these laws. Based on the experimental results in the (1 − x)Pb(Fe2/3W1/3)O3–xPbTiO3 relaxor system and theoretical modelling analysis, it is shown that the law proposed by Eiras is more suitable to explain the behaviour of both more complete relaxor systems and incomplete relaxor systems.
Relation:	Journal of Alloys and Compounds, Vol.509 no.5, pp.2216-2220
Appears in Collections:	[Department of Electronics Engineering and Computer Science] journal

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