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Nonmonotonous Behavior of Temperature-Dependence of Plasma Frequency and Effect of a Local Instability of the PbTe:In,Ga Lattice

Published online by Cambridge University Press:  10 February 2011

A. I. Belogorokihov ,
L. I. Belogorokhova  and
D. R. Khokhlov
A. I. Belogorokihov
Affiliation:
State Scientific & Research Institute of Rare Metals. Leninsky Prosp., 156-5 17, Moscow 117571, Russia.(095) [email protected]
L. I. Belogorokhova
Affiliation:
Moscow State University, Physics Department, Russia
D. R. Khokhlov
Affiliation:
Moscow State University, Physics Department, Russia
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Abstract

The optical spectra of PbTe:In,Ga samples were studied in the Far Infrared region at temperatures T=11 K–3 50K. Anomalous behavior of the temperature dependence of the plasma frequency at 65K–80K was observed for the first time. This is explained by means of a model of localized changes in the lead telluride lattice structure near impurity centers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 484: Symposium F – Infrared Applications of Semiconductors II , 1997 , 383
Copyright
Copyright © Materials Research Society 1998

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