"STRUCTURAL CHARACTERIZATION OF THE CINNABAR PHASE IN ZnSexTe1-x ALLOYS ",
J. PELLICER-PORRES, D. MARTÍNEZ-GARCÍA, CH. FERRER-ROCA, A. SEGURA, P. MUNSCH, J. P. ITIÉ, A. POLIAN, V. MUÑOZ-SANJOSÉ
High Pressure Research 23, 339-342 (2003)

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We report energy dispersive x-ray diffraction experiments carried out in the Te rich side of ZnSexTe1-x alloys with the aim of characterizing the cinnabar phase. In the samples studied (x=0.55, 0.2, 0.1 and 0.0) the cinnabar phase is observed both in the upstroke and downstroke, between either the zincblende and rocksalt phases (x=0.55, 0.2), or between the zincblende and Cmcm phases (x=0.1, 0.0). In ZnSe0.2Te0.8 the rocksalt phase is transformed to the Cmcm phase if additional pressure is applied. The dependence of the cinnabar’s lattice parameters with composition is given by a=4.062-0.262x and c=9.434-0.575x.