INHOMOGENEITY STUDY OF ALANINE-DOPED TGS CRYSTAL USING MICRO-PROBE RAMAN-SPECTROSCOPY

Authors
JIN BM ERDEI S BHALLA AS
Citation
Bm. Jin et al., INHOMOGENEITY STUDY OF ALANINE-DOPED TGS CRYSTAL USING MICRO-PROBE RAMAN-SPECTROSCOPY, Ferroelectrics. Letters section, 18(1-2), 1994, pp. 45-51
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Ferroelectrics. Letters section → ACNP
ISSN journal
07315171
Volume
18
Issue
1-2
Year of publication
1994
Pages
45 - 51
Database
ISI
SICI code
0731-5171(1994)18:1-2<45:ISOATC>2.0.ZU;2-A
Abstract
Micro-probe Raman spectroscopy is used for studying positional inhomog eneity in alanine-doped TGS crystals. 20 data points are measured alon g the c- and a-axes. Several known Raman peaks are observed unchanged, but most other peaks are found to be changed remarkably. The major di fference in spectra are found to be related to SO4 vibrations. The vib rational frequencies are found to be lowered near the seed position. T he most unstable spectra are detected in the vicinity of the seed regi on.