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Infrared optical characterization of (Cu2GeSe3)1−x (CuGe2P3)x mixed crystals

✍ Scribed by Dr. V. Riede; N. Sharif; Dr. H. Neumann; Dr. M. S. Omar; Dr. H. Sobotta

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
294 KB
Volume
23
Category
Article
ISSN
0232-1300

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✦ Synopsis

Infrared reflectivity spectra of (Cu,GeSe,)l-, (CuGe,P,), mixed crystals with z = 0.1 and 0.2 are measured in t h e wave-number range from 180 t o 4000 cm-l. An analysis of the spectra reveals contributions from five vibrational modes and from free carriers t o the reflectivity. The results are compared with previous measurements for Cu,GeSe, and CuGe,P,.

Infrarot-Reflexionsspektren von (Cu,GeSe,)l --5 (CuGe,P,),-Mischkristallen niit z = 0.1 und 0.2 wurden im Wellenzahlbereich von 180 bis 4000 cm-l gemessen. Eine Analyse der Spektren ergibt Beitrage von funf Schwingungsmoden und von freien Ladungstragern zum Reflexionsvermogen. Die Ergebnisse werden mit friiheren Messungen fur Cu,GeSe, und CuGe,P, verglichen.

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