Premium
Infrared optical characterization of (Cu 2 GeSe 3 ) 1− x (CuGe 2 P 3 ) x mixed crystals
Author(s) -
Riede V.,
Sharif N.,
Neumann H.,
Omar M. S.,
Sobotta H.
Publication year - 1988
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.2170230520
Subject(s) - infrared , infrared spectroscopy , analytical chemistry (journal) , reflectivity , materials science , spectral line , characterization (materials science) , crystallography , chemistry , optics , physics , nanotechnology , organic chemistry , chromatography , astronomy
Infrared reflectivity spectra of (Cu 2 GeSe 3 ) 1− x (CuGe 2 P 3 ) x mixed crystals with x = 0.1 and 0.2 are measured in the wave‐number range from 180 to 4000 cm −1 . An analysis of the spectra reveals contributions from five vibrational modes and from free carriers to the reflectivity. The results are compared with previous measurements for Cu 2 GeSe 3 and CuGe 2 P 3 .