Differential Raman scattering from impurity soft modes in mixed crystals of K1-xNaxTaO3 and K1-xLixTaO3

Yizhak Yacoby; Shlomó Just

doi:10.1016/0038-1098(74)90246-4

Differential Raman scattering from impurity soft modes in mixed crystals of K_1-xNa_xTaO₃ and K_1-xLi_xTaO₃

Yizhak Yacoby^*, Shlomó Just

^*Corresponding author for this work

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

97 Scopus citations

Abstract

Impurity modes are observed in crystals of KTaO₃ doped with Na and Li, using differential Raman spectroscopy. One of the modes is shown to soften as the temperature approaches the ferroelectric transition temperature. Analysis of the results shows that the Na and Li ions do not occupy center of inversion positions. The roll of this observation in the inducement of ferroelectricity in these crystals is briefly discussed.

Original language	English
Pages (from-to)	715-718
Number of pages	4
Journal	Solid State Communications
Volume	15
Issue number	4
DOIs	https://doi.org/10.1016/0038-1098(74)90246-4
State	Published - 15 Aug 1974
Externally published	Yes

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10.1016/0038-1098(74)90246-4

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title = "Differential Raman scattering from impurity soft modes in mixed crystals of K1-xNaxTaO3 and K1-xLixTaO3",

abstract = "Impurity modes are observed in crystals of KTaO3 doped with Na and Li, using differential Raman spectroscopy. One of the modes is shown to soften as the temperature approaches the ferroelectric transition temperature. Analysis of the results shows that the Na and Li ions do not occupy center of inversion positions. The roll of this observation in the inducement of ferroelectricity in these crystals is briefly discussed.",

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AU - Just, Shlomó

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N2 - Impurity modes are observed in crystals of KTaO3 doped with Na and Li, using differential Raman spectroscopy. One of the modes is shown to soften as the temperature approaches the ferroelectric transition temperature. Analysis of the results shows that the Na and Li ions do not occupy center of inversion positions. The roll of this observation in the inducement of ferroelectricity in these crystals is briefly discussed.

AB - Impurity modes are observed in crystals of KTaO3 doped with Na and Li, using differential Raman spectroscopy. One of the modes is shown to soften as the temperature approaches the ferroelectric transition temperature. Analysis of the results shows that the Na and Li ions do not occupy center of inversion positions. The roll of this observation in the inducement of ferroelectricity in these crystals is briefly discussed.

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Differential Raman scattering from impurity soft modes in mixed crystals of K_1-xNa_xTaO₃ and K_1-xLi_xTaO₃

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