Phenomenological analysis for intrinsic properties of nonstoichiometric BaTiO3

Soonil Lee; George A. Rossetti; Zi-kui Liu; Clive A. Randall

doi:10.1109/ISAF.2008.4693763

Phenomenological analysis for intrinsic properties of nonstoichiometric BaTiO₃

Soonil Lee, George A. Rossetti, Zi-kui Liu, Clive A. Randall

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The defect and phase equilibria of nonstoichiometric BaTiO₃ have been systematically investigated. Self-consistent data were obtained and successfully modeled analytically with defect reactions taking into account the dependent variables of Ba/Ti ratio, temperature, and oxygen partial pressure (Po₂). The compositional dependence of the ferroelectric properties in the solid solution regime was described by the Landau-Devonshire theory allowing the parameters of the theory to be functions of stoichiometry. With this approach, we are able to self-consistently determine the spontaneous polarization, dielectric constant, and energetics of the paraelectric- ferroelectric phase transition of powder samples. This theoretical approach provided a way of predicting the intrinsic properties of nonstoichiometric BaTiO₃, which have had no previous complete determination or consideration.

Original language	English (US)
Title of host publication	17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008
DOIs	https://doi.org/10.1109/ISAF.2008.4693763
State	Published - 2008
Event	17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008 - Santa Fe, NM, United States Duration: Feb 23 2008 → Feb 28 2008

Publication series

Name	IEEE International Symposium on Applications of Ferroelectrics
Volume	3

Other

Other	17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008
Country/Territory	United States
City	Santa Fe, NM
Period	2/23/08 → 2/28/08

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/ISAF.2008.4693763

Cite this

@inproceedings{e2bfc8c558de46bd82ae750b8c840517,

title = "Phenomenological analysis for intrinsic properties of nonstoichiometric BaTiO3",

abstract = "The defect and phase equilibria of nonstoichiometric BaTiO3 have been systematically investigated. Self-consistent data were obtained and successfully modeled analytically with defect reactions taking into account the dependent variables of Ba/Ti ratio, temperature, and oxygen partial pressure (Po2). The compositional dependence of the ferroelectric properties in the solid solution regime was described by the Landau-Devonshire theory allowing the parameters of the theory to be functions of stoichiometry. With this approach, we are able to self-consistently determine the spontaneous polarization, dielectric constant, and energetics of the paraelectric- ferroelectric phase transition of powder samples. This theoretical approach provided a way of predicting the intrinsic properties of nonstoichiometric BaTiO3, which have had no previous complete determination or consideration.",

author = "Soonil Lee and Rossetti, {George A.} and Zi-kui Liu and Randall, {Clive A.}",

year = "2008",

doi = "10.1109/ISAF.2008.4693763",

language = "English (US)",

isbn = "1424427444",

series = "IEEE International Symposium on Applications of Ferroelectrics",

booktitle = "17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008",

note = "17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008 ; Conference date: 23-02-2008 Through 28-02-2008",

}

Lee, S, Rossetti, GA, Liu, Z & Randall, CA 2008, Phenomenological analysis for intrinsic properties of nonstoichiometric BaTiO₃. in 17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008., 4693763, IEEE International Symposium on Applications of Ferroelectrics, vol. 3, 17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008, Santa Fe, NM, United States, 2/23/08. https://doi.org/10.1109/ISAF.2008.4693763

Phenomenological analysis for intrinsic properties of nonstoichiometric BaTiO₃. / Lee, Soonil; Rossetti, George A.; Liu, Zi-kui et al.
17th IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2008. 2008. 4693763 (IEEE International Symposium on Applications of Ferroelectrics; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Phenomenological analysis for intrinsic properties of nonstoichiometric BaTiO3

AU - Lee, Soonil

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AU - Liu, Zi-kui

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N2 - The defect and phase equilibria of nonstoichiometric BaTiO3 have been systematically investigated. Self-consistent data were obtained and successfully modeled analytically with defect reactions taking into account the dependent variables of Ba/Ti ratio, temperature, and oxygen partial pressure (Po2). The compositional dependence of the ferroelectric properties in the solid solution regime was described by the Landau-Devonshire theory allowing the parameters of the theory to be functions of stoichiometry. With this approach, we are able to self-consistently determine the spontaneous polarization, dielectric constant, and energetics of the paraelectric- ferroelectric phase transition of powder samples. This theoretical approach provided a way of predicting the intrinsic properties of nonstoichiometric BaTiO3, which have had no previous complete determination or consideration.

AB - The defect and phase equilibria of nonstoichiometric BaTiO3 have been systematically investigated. Self-consistent data were obtained and successfully modeled analytically with defect reactions taking into account the dependent variables of Ba/Ti ratio, temperature, and oxygen partial pressure (Po2). The compositional dependence of the ferroelectric properties in the solid solution regime was described by the Landau-Devonshire theory allowing the parameters of the theory to be functions of stoichiometry. With this approach, we are able to self-consistently determine the spontaneous polarization, dielectric constant, and energetics of the paraelectric- ferroelectric phase transition of powder samples. This theoretical approach provided a way of predicting the intrinsic properties of nonstoichiometric BaTiO3, which have had no previous complete determination or consideration.

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