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Raman spectrum of anatase, TiO 2
Author(s) -
Ohsaka Toshiaki,
Izumi Fujio,
Fujiki Yoshinori
Publication year - 1978
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250070606
Subject(s) - raman spectroscopy , anatase , spectral line , analytical chemistry (journal) , materials science , raman scattering , range (aeronautics) , chemistry , molecular physics , optics , physics , photocatalysis , organic chemistry , catalysis , astronomy , composite material
Raman spectra of anatase have been observed in natural and synthetic crystals. Both crystals show the same spectral features. The Raman band occurring at 516 cm −1 at room temperature is split into two peaks centred at 519 cm −1 and 513 cm −1 at low temperature (73 K). The six Raman active fundamentals predicted by group theory are all observed and assigned. The spectra are analyzed by a simple model considering only short‐range forces and the calculated vibrational frequencies are in good agreement with the observed Raman frequencies.