Abstract:The emerging CdTe-BeTe semiconductor alloy that exhibits a dramatic mismatch in bond covalency / stiffness clarifying its vibrational-mechanical properties is used as a benchmark to test the limits of the percolation model (PM) worked out to explain the complex Raman spectra of the related but less contrasted Zn1‑xBex‑chalcogenides. The test is done by way of experiment (x< 0.11) – combining Raman scattering with X-ray diffraction at high pressure – and ab initio calculations (x~0 – 0.5, x~1). The (macrosco… Show more
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