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Semiconductor Physics, Quantum Electronics & Optoelectronics. 2005. V. 8, N 4. P. 001-004.
Unstable mixing regions in II-VI quaternary solid solutions
Yu. Fed’kovich Chernivtsi National University, 2, Kotsyubinsky str., 58012 Chernivtsi, Ukraine
Phone: +38-03722-44500; e-mail: vdei@chnu.cv.ua
Abstract. The miscibility gaps and critical temperatures of the spinodal decompositions
of the quaternary semiconducting epitaxial thin films CdMnHgTe and ZnMnHgTe have
been calculated. Fitting the spinodal isotherms calculated from the free energy of mixing
being based on application of the delta-lattice parameter method to the experimental data,
the model constant K is determined. It has been shown the narrowing of the spinodal
decomposition regions due to both the deformation energy and the effect of plastic
relaxation caused by mismatch dislocations in thin films.
Keywords: quaternary alloys, spinodal decomposition, II-VI thin films.
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