1967
DOI: 10.1103/physrev.158.433
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Dielectric Properties and Optical Phonons in LiNbO3

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Cited by 358 publications
(163 citation statements)
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“…The optical phonon modes obtained from Raman scattering are very sensitive to stoichiometry, strain, impurities as well as the crystal system of the materials. 17 The phonon modes observed for the LN cube-shaped nanoparticles are very similar to those of the spherical nanoparticles both in terms of position and relative intensity (Fig. 3).…”
Section: Discussionmentioning
confidence: 60%
“…The optical phonon modes obtained from Raman scattering are very sensitive to stoichiometry, strain, impurities as well as the crystal system of the materials. 17 The phonon modes observed for the LN cube-shaped nanoparticles are very similar to those of the spherical nanoparticles both in terms of position and relative intensity (Fig. 3).…”
Section: Discussionmentioning
confidence: 60%
“…is the autocorrelation function of the probe pulse electric field. All material parameters necessary for calculations are taken from [23,24].…”
Section: Prl 98 044801 (2007) P H Y S I C a L R E V I E W L E T T E mentioning
confidence: 99%
“…A displacive phase transition is one where the local potential in the mean field of the rest of the crystal has a single minima, and is characterized by a temperature dependent optic mode approaching zero as the temperature reaches T C . Temperature dependence measurements of Raman, Rayleigh scattering 3 and infrared reflectivity [4][5][6] show soft mode behavior for one polar A 1 (TO) optic mode in the ferroelectric phase. This soft mode crosses many E modes (whose eigenvectors give ionic displacements perpendicular to the polar axis) , and thus this specific mode is difficult to trace in detail.…”
Section: Introductionmentioning
confidence: 99%