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Infrared lattice vibrations of In 2 O 3
Author(s) -
Sobotta H.,
Neumann H.,
Kühn G.,
Riede V.
Publication year - 1990
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170250112
Subject(s) - wavenumber , lattice vibration , infrared , infrared spectroscopy , spectral line , lattice (music) , analytical chemistry (journal) , reflectivity , kramers–kronig relations , range (aeronautics) , materials science , molecular vibration , vibration , chemistry , molecular physics , optics , condensed matter physics , physics , refractive index , molecule , phonon , optoelectronics , organic chemistry , astronomy , quantum mechanics , acoustics , composite material
Infrared reflectivity spectra of In 2 O 3 samples pressed from powdered material are measured at room temperature in the wavenumber range from 180 to 4000 cm −1 . A Kramers‐Kronig analysis of the spectra reveals eleven vibrational modes. The results obtained are compared with group theoretical predictions and with existing experimental data.