The Raman spectrum of BaTiO3

Pinczuk, A.; Taylor, W.; Burstein, E.; Lefkowitz, I.

doi:10.1016/0038-1098(67)90791-0

Cited by 110 publications

(34 citation statements)

References 9 publications

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“…11 The phonon wavenumbers are also expected to shift towards higher/lower values depending upon the tensile/compressive nature of the stress. 12 The Raman wavenumbers observe for the ceramics in this study were P. S. Dobal et al found to be comparable to those of single crystals, 13,14 which suggests the stress-free nature and larger grain size of the ceramics. However, different wavenumbers have been observed in films due to stresses caused by the differences in lattice parameters and thermal expansion coefficients of the film and substrate material.…”

Section: Solid Solutions Of Batio 3 Such As Bazr X Ti 1 X O 3 (Bzt)supporting

confidence: 59%

“…All the Raman modes observed in the tetragonal phase have already been reported and discussed in the literature. 10,13,14 The tetragonal to cubic transition occurred about 137,97,27 and 7°C for x D 0.00, 0.10, 0.30 and 0.35 respectively. Two very broad bands centered at about 288 and 516 cm 1 characterized the cubic paraelectric phase.…”

Section: Solid Solutions Of Batio 3 Such As Bazr X Ti 1 X O 3 (Bzt)mentioning

confidence: 99%

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Micro‐Raman study of Ba_{1 − x}Sr_xTiO₃ ceramics

Dobal

Dixit

Katiyar

et al. 2001

J Raman Spectroscopy

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A Raman spectroscopic study was performed to investigate Ba 1−x Sr x TiO 3 ceramics prepared using a solid-state reaction technique. A single-phase perovskite structure of the ceramics was verified and no mechanical stresses or grain size effects were identified within the sensitivity of the Raman micro-probe. The tetragonal to cubic transition temperature that was found to decrease linearly from 137 to 7 • C with increasing Sr content from x = 0.00 to x = 0.35 corroborated the dielectric results on single crystals.

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Section: Solid Solutions Of Batio 3 Such As Bazr X Ti 1 X O 3 (Bzt)supporting

confidence: 59%

Section: Solid Solutions Of Batio 3 Such As Bazr X Ti 1 X O 3 (Bzt)mentioning

confidence: 99%

Micro‐Raman study of Ba_{1 − x}Sr_xTiO₃ ceramics

Dobal

Dixit

Katiyar

et al. 2001

J Raman Spectroscopy

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“…It consisted Raman bands from two phases, tetragonal and orthorhombic phase, denoting with solid arrows and dash arrow respectively. Comparing to Raman spectrum of the single crystal BaTiO 3 [8][9][10], we assigned the spectrum as follows, a weak peak at 187. and 308.6 cm −1 [E (TO)], were the common character of tetragonal and orthorhombic symmetry. The phonon assignment was given inside square brackets.…”

Section: Resultsmentioning

confidence: 99%

High pressure Raman studies of dense nanocrystalline BaTiO3 ceramic

Zhang

Chen

et al. 2007

J Electroceram

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“…Information about the shape of the unit cells of BTO1 and BTO2 were gained through Raman active vibration modes. 44 It was found that for a tetragonal unit cell a ferroelectric crystal is observed, while a cubit unit cell obviously did not exhibit ferroelectricity.…”

Section: Characterisation Of the Particlesmentioning

confidence: 99%

A comparison between size dependent paraelectric and ferroelectric BaTiO3 nanoparticle doped nematic and ferroelectric liquid crystals

Al-Zangana

Turner

Dierking

2017

Journal of Applied Physics

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The electro-optic and dielectric properties of barium titanate, BaTiO 3 , nanoparticle (NP) doped nematic and ferroelectric liquid crystal materials were examined with respect to different size and concentration of the NPs. Smaller size paraelectric NPs (≈80nm) are compared to larger, ferroelectric NPs (≈240nm). It is found that for concentrations larger than 0.5vol% the ferroelectric NPs exhibit an increasing effect on the electro-optic response of the nematic liquid crystal, which is demonstrated by the enhancement of the dielectric anisotropy. This could be induced by the coupling of the electrical dipole moments in the spherical NPs with the LC director field. The electro-optical properties of the SmC* phase, like tilt angle Θ, switching time and spontaneous polarisation are found to be independent of the concentration and size of the NPs. The rotational viscosity calculated from response times, polarization reversal current and dielectric properties is comparable for all three methods employed and practically independent of particle concentration and size. The relaxation frequency of the Goldstone mode is higher in the ferroelectric NPs suspensions of 2.0vol% as compared to the smaller paraelectric NPs.

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The Raman spectrum of BaTiO3

Cited by 110 publications

References 9 publications

Micro‐Raman study of Ba_{1 − x}Sr_xTiO₃ ceramics

Micro‐Raman study of Ba_{1 − x}Sr_xTiO₃ ceramics

High pressure Raman studies of dense nanocrystalline BaTiO3 ceramic

A comparison between size dependent paraelectric and ferroelectric BaTiO3 nanoparticle doped nematic and ferroelectric liquid crystals

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The Raman spectrum of BaTiO3

Cited by 110 publications

References 9 publications

Micro‐Raman study of Ba1 − xSrxTiO3 ceramics

Micro‐Raman study of Ba1 − xSrxTiO3 ceramics

High pressure Raman studies of dense nanocrystalline BaTiO3 ceramic

A comparison between size dependent paraelectric and ferroelectric BaTiO3 nanoparticle doped nematic and ferroelectric liquid crystals

Contact Info

Product

Resources

About

Micro‐Raman study of Ba_{1 − x}Sr_xTiO₃ ceramics

Micro‐Raman study of Ba_{1 − x}Sr_xTiO₃ ceramics