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RESEARCH PRODUCT
Observation of the Cinnabar Phase in ZnSe at High Pressure
J. Pellicer-porresAlfredo SeguraJ. ZúñigaAlain PolianJean-paul ItiéP. MunschV. Muñozsubject
DiffractionPhase transitionCrystallographyMaterials scienceCinnabarHigh pressureLattice (order)AlloyX-ray crystallographyAnalytical chemistryengineeringengineering.materialCondensed Matter Physicsdescription
In this paper we describe the results of an energy dispersive X-ray diffraction experiment carried out in the ZnSe 1 m x Te x alloy and pure ZnSe under high pressure. In the downstroke the cinnabar phase is observed between the rocksalt and the zincblende phases. The analysis of the whole series of compositions ( x =0, 0.05, 0.1 and 0.2) enables us to establish its lattice parameters in ZnSe ( a =3.785 + and c =8.844 + at 10.5 GPa). The X-ray diffraction pattern simulation suggests that the internal parameters u and v are close to 0.5, indicating that the cinnabar phase in ZnSe is similar to that observed in GaAs and ZnTe. The cinnabar's stability range decreases as the Te content is reduced.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-01-01 | High Pressure Research |