Infrared studies of the perdvskite type ceramics

V. Zielezny; J. Petzelt; A. A. Volkov; M. Ozolinsh

doi:10.1080/00150199008211405

Infrared studies of the perdvskite type ceramics

V. Zielezny
, J. Petzelt
, A. A. Volkov
, M. Ozolinsh

Laboratory of Adaptive Optics Technology, Institute of Solid State Physics

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

13 Citations (Scopus)

Abstract

The IR reflectivity of PLZT (Pbo.9025^Lao. 09 75Zr0.65Ti0.3503) and PSN (Pb(Scg.5Nbg 5)O₃) ceramics was determined in the spectral range 13 to 2000 cm^-l and temperature region 25 to 200°C around the ferroelectric phase transitions. Kramers-Kronig analysis was used to calculate the dielectric function. In the case of PLZT a strong central-mode-type dispersion was observed both in reflectivity and BWO transmission below ~ 4/40 cm^_l which prevents softening of the lowest phonon mode. In the case of less diffusive PSN the central mode is shifted below ~10 cm^-1 and a monotonous softening of the lowest phonon mode is observed in the whole temperature range.

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Ferroelectrics
Volume	109
Issue number	1
DOIs	https://doi.org/10.1080/00150199008211405
Publication status	Published - 1 Sept 1990

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title = "Infrared studies of the perdvskite type ceramics",

abstract = "The IR reflectivity of PLZT (Pbo.9025Lao. 09 75Zr0.65Ti0.3503) and PSN (Pb(Scg.5Nbg 5)O3) ceramics was determined in the spectral range 13 to 2000 cm-l and temperature region 25 to 200°C around the ferroelectric phase transitions. Kramers-Kronig analysis was used to calculate the dielectric function. In the case of PLZT a strong central-mode-type dispersion was observed both in reflectivity and BWO transmission below \textasciitilde{} 4/40 cm\_l which prevents softening of the lowest phonon mode. In the case of less diffusive PSN the central mode is shifted below \textasciitilde{}10 cm-1 and a monotonous softening of the lowest phonon mode is observed in the whole temperature range.",

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AU - Zielezny, V.

AU - Petzelt, J.

AU - Volkov, A. A.

AU - Ozolinsh, M.

PY - 1990/9/1

Y1 - 1990/9/1

N2 - The IR reflectivity of PLZT (Pbo.9025Lao. 09 75Zr0.65Ti0.3503) and PSN (Pb(Scg.5Nbg 5)O3) ceramics was determined in the spectral range 13 to 2000 cm-l and temperature region 25 to 200°C around the ferroelectric phase transitions. Kramers-Kronig analysis was used to calculate the dielectric function. In the case of PLZT a strong central-mode-type dispersion was observed both in reflectivity and BWO transmission below ~ 4/40 cm_l which prevents softening of the lowest phonon mode. In the case of less diffusive PSN the central mode is shifted below ~10 cm-1 and a monotonous softening of the lowest phonon mode is observed in the whole temperature range.

AB - The IR reflectivity of PLZT (Pbo.9025Lao. 09 75Zr0.65Ti0.3503) and PSN (Pb(Scg.5Nbg 5)O3) ceramics was determined in the spectral range 13 to 2000 cm-l and temperature region 25 to 200°C around the ferroelectric phase transitions. Kramers-Kronig analysis was used to calculate the dielectric function. In the case of PLZT a strong central-mode-type dispersion was observed both in reflectivity and BWO transmission below ~ 4/40 cm_l which prevents softening of the lowest phonon mode. In the case of less diffusive PSN the central mode is shifted below ~10 cm-1 and a monotonous softening of the lowest phonon mode is observed in the whole temperature range.

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DO - 10.1080/00150199008211405

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SN - 0015-0193

VL - 109

SP - 149

EP - 154

JO - Ferroelectrics

JF - Ferroelectrics

IS - 1

ER -

Infrared studies of the perdvskite type ceramics

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