Electrical and optical properties of relaxor ferroelectrics

D. A. Mchenry; J. R. Giniewicz; T. R. Shrout; S. J. Jang; A. S. Bhalla

doi:10.1080/00150199008221475

Electrical and optical properties of relaxor ferroelectrics

D. A. Mchenry, J. R. Giniewicz, T. R. Shrout, S. J. Jang, A. S. Bhalla

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The dielectric and optic/electro-optic properties of hot-pressed ceramics of composition (l-x)(Pb_1-y - La_y)(Mg_1/3Nb_2/3)O₃ - xPbTiO₃ (y = 0.01) have been investigated. The materials exhibit high peak dielectric constants (>20000) with typical relaxor ferroelectric behavior. The ceramics are adequately transparent for optical and electro-optical evaluation with transmission better than 50% at 600 nm. High refractive indices are observed (>2.5 at 632.8 nm) and the dispersion of the refractive index is well described by a single-term Sellmeier equation. The temperature dependence of the refractive index exhibits a linear region above 390°C and a polarization induced decrease of the index via the electrooptic effect below this temperature. The transverse quadratic electro-optic coefficients, (R₁₁-R₁₂) and (g₁₁-g₁₂), were evaluated both as a function of temperature and frequency. Electro-optic switching experiments indicate rapid response of less than 1 μsec, suitable for transverse shutter mode operation.

Original language	English (US)
Pages (from-to)	161-171
Number of pages	11
Journal	Ferroelectrics
Volume	102
Issue number	1
DOIs	https://doi.org/10.1080/00150199008221475
State	Published - Feb 1 1990

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Electrical and optical properties of relaxor ferroelectrics",

abstract = "The dielectric and optic/electro-optic properties of hot-pressed ceramics of composition (l-x)(Pb1-y - Lay)(Mg1/3Nb2/3)O3 - xPbTiO3 (y = 0.01) have been investigated. The materials exhibit high peak dielectric constants (>20000) with typical relaxor ferroelectric behavior. The ceramics are adequately transparent for optical and electro-optical evaluation with transmission better than 50% at 600 nm. High refractive indices are observed (>2.5 at 632.8 nm) and the dispersion of the refractive index is well described by a single-term Sellmeier equation. The temperature dependence of the refractive index exhibits a linear region above 390°C and a polarization induced decrease of the index via the electrooptic effect below this temperature. The transverse quadratic electro-optic coefficients, (R11-R12) and (g11-g12), were evaluated both as a function of temperature and frequency. Electro-optic switching experiments indicate rapid response of less than 1 μsec, suitable for transverse shutter mode operation.",

author = "Mchenry, {D. A.} and Giniewicz, {J. R.} and Shrout, {T. R.} and Jang, {S. J.} and Bhalla, {A. S.}",

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T1 - Electrical and optical properties of relaxor ferroelectrics

AU - Mchenry, D. A.

AU - Giniewicz, J. R.

AU - Shrout, T. R.

AU - Jang, S. J.

AU - Bhalla, A. S.

PY - 1990/2/1

Y1 - 1990/2/1

N2 - The dielectric and optic/electro-optic properties of hot-pressed ceramics of composition (l-x)(Pb1-y - Lay)(Mg1/3Nb2/3)O3 - xPbTiO3 (y = 0.01) have been investigated. The materials exhibit high peak dielectric constants (>20000) with typical relaxor ferroelectric behavior. The ceramics are adequately transparent for optical and electro-optical evaluation with transmission better than 50% at 600 nm. High refractive indices are observed (>2.5 at 632.8 nm) and the dispersion of the refractive index is well described by a single-term Sellmeier equation. The temperature dependence of the refractive index exhibits a linear region above 390°C and a polarization induced decrease of the index via the electrooptic effect below this temperature. The transverse quadratic electro-optic coefficients, (R11-R12) and (g11-g12), were evaluated both as a function of temperature and frequency. Electro-optic switching experiments indicate rapid response of less than 1 μsec, suitable for transverse shutter mode operation.

AB - The dielectric and optic/electro-optic properties of hot-pressed ceramics of composition (l-x)(Pb1-y - Lay)(Mg1/3Nb2/3)O3 - xPbTiO3 (y = 0.01) have been investigated. The materials exhibit high peak dielectric constants (>20000) with typical relaxor ferroelectric behavior. The ceramics are adequately transparent for optical and electro-optical evaluation with transmission better than 50% at 600 nm. High refractive indices are observed (>2.5 at 632.8 nm) and the dispersion of the refractive index is well described by a single-term Sellmeier equation. The temperature dependence of the refractive index exhibits a linear region above 390°C and a polarization induced decrease of the index via the electrooptic effect below this temperature. The transverse quadratic electro-optic coefficients, (R11-R12) and (g11-g12), were evaluated both as a function of temperature and frequency. Electro-optic switching experiments indicate rapid response of less than 1 μsec, suitable for transverse shutter mode operation.

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JO - Ferroelectrics

JF - Ferroelectrics

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Electrical and optical properties of relaxor ferroelectrics

Abstract

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