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Proceedings Paper

Role of phonon subsystems in second order optical effects in semiconductor semimagnetic Pb1-xRxX (R=Pr, Yb and X=S, Se, Te)
Author(s): K. Nouneh; I. Kityk; S. Benet; R. Viennois; S. Charar; Z. Golacki
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Paper Abstract

Measurements of transport and non-linear optical properties in magnetic semiconductors Pb1-xRxX (R=Pr, Yb and X=S, Se, Te at x≈1-3%) were performed to elucidate an influence of magnetic ions on behavior of the charge carriers. It was shown that nonlinear optical methods may be used as a sensitive tool for investigation of electron-phonon an harmonicity near the low temperature semiconductor isolator phase transformation. The presence of the minimum in Pb1-xPrxTe at about Tρmin = 50 K in the temperature dependence of the resistivity r(T) is due to metal-semiconductor transition. Particularly with increasing of electron-phonon interactions indicated by temperature dependent Debye term (parameter β), one can observe an increase of two-photon oscillator strengths.

Paper Details

Date Published: 5 October 2005
PDF: 5 pages
Proc. SPIE 5949, Nonlinear Optics Applications, 59490W (5 October 2005); doi: 10.1117/12.624596
Show Author Affiliations
K. Nouneh, Univ. de Perpignan (France)
Univ. de Montpellier II (France)
I. Kityk, Univ. de Czestochowa (Poland)
Univ. de Perpignan (France)
S. Benet, Univ. de Perpignan (France)
R. Viennois, Univ. de Montpellier II (France)
S. Charar, Univ. de Montpellier II (France)
Z. Golacki, Institute of Physics (Poland)

Published in SPIE Proceedings Vol. 5949:
Nonlinear Optics Applications
Miroslaw A. Karpierz; Allan Dawson Boardman; George I. Stegeman, Editor(s)

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