Role of phonon subsystems in second order optical effects in semiconductor semimagnetic Pb1-xRxX (R=Pr, Yb and X=S, Se, Te)

K. Nouneh; I. Kityk; S. Benet; R. Viennois; S. Charar; Z. Golacki

doi:10.1117/12.624596

5 October 2005 Role of phonon subsystems in second order optical effects in semiconductor semimagnetic Pb_1-xR_xX (R=Pr, Yb and X=S, Se, Te)

K. Nouneh, I. Kityk, S. Benet, R. Viennois, S. Charar, Z. Golacki

Author Affiliations +

Proceedings Volume 5949, Nonlinear Optics Applications; 59490W (2005) https://doi.org/10.1117/12.624596
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

Measurements of transport and non-linear optical properties in magnetic semiconductors Pb_1-xR_xX (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 Pb_1-xPr_xTe at about T^ρ_min = 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.

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K. Nouneh, I. Kityk, S. Benet, R. Viennois, S. Charar, and Z. Golacki "Role of phonon subsystems in second order optical effects in semiconductor semimagnetic Pb_1-xR_xX (R=Pr, Yb and X=S, Se, Te)", Proc. SPIE 5949, Nonlinear Optics Applications, 59490W (5 October 2005); https://doi.org/10.1117/12.624596

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