Phonon-Polariton Dispersion Relation of SrTi(18O x 16O1-x )3

The observation of A 1 -symmetry phonon-polariton of SrTi( 18 O x 16 O 1-x ) 3 was carried out by impulsive stimulated Raman scattering with optical heterodyne detection. By the fit of the phonon-polariton dispersion relation, the static dielectric constant along the polar axis and the soft mode fre...

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Bibliographic Details
Published in:Ferroelectrics 2004-01, Vol.304 (1), p.63-70
Main Authors: WATANUKI, TAKEO, TSUJIMI, YUHJI, WANG, RUIPIN, ITOH, MITSURU, YAGI, TOSHIROU
Format: Article
Language:English
Subjects:
ferroelectric phase transition
impulsive stimulated Raman scattering
isotope exchange
Optical heterodyne detection
optical phase mask
soft mode
strontium titanate
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Summary:The observation of A 1 -symmetry phonon-polariton of SrTi( 18 O x 16 O 1-x ) 3 was carried out by impulsive stimulated Raman scattering with optical heterodyne detection. By the fit of the phonon-polariton dispersion relation, the static dielectric constant along the polar axis and the soft mode frequency were obtained at once. The present results well associated the previous Raman scattering and dielectric measurement study each other.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150190490454576