Abstract
Structural and optical properties of two- and three-layer epitaxial heterostructures containing GaInP/Ga x In1 − x As y P1 − y quaternary alloy layers were studied. Domain formation due to spinodal decomposition of the quaternary alloy was detected in three-layer heterostructures. As a result, an additional long-wavelength band appears in the photoluminescence spectra, and an additional doublet of the \( CuK_{\alpha _{1,2} } \) line appears in X-ray diffraction patterns of the (006) line. The domain composition was determined on the basis of Vegard’s law and the Kouphal equation.
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Original Russian Text © E.P. Domashevskaya, N.N. Gordienko, N.A. Rumyantseva, B.L. Agapov, P.V. Seredin, L.A. Bityutskaya, I.N. Arsent’ev, L.S. Vavilova, I.S. Tarasov, 2008, published in Fizika i Tekhnika Poluprovodnikov, 2008, Vol. 42, No. 9, pp. 1086–1093.
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Domashevskaya, E.P., Gordienko, N.N., Rumyantseva, N.A. et al. Composition and parameters of domains resulting from spinodal decomposition of quaternary alloys in epitaxial GaInP/Ga x In1 − x As y P1 − y /GaInP/GaAs(001) heterostructures. Semiconductors 42, 1069–1075 (2008). https://doi.org/10.1134/S1063782608090121
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DOI: https://doi.org/10.1134/S1063782608090121