Table 1 Input parameters involved in the Raman cross section (\(RCS\), Eq. 1) and in the dynamical matrix-elements (\({\widetilde{M}}_{T,L}\), Eqs. 2 and 3) of Cd1−xZnxTe.
\({Cd}_{1-x}{Zn}_{x}Te\) | Parameters | Pressure dependence (\(P\) in \(GPa\)) |
|---|---|---|
\(x = 1\) | \({\omega }_{T} \left({cm}^{-1}\right)\) | \(-0.1474\times {P}^{2} + 5.9742\times P + 176.55\) (fitted from Ref.38) |
\({\omega }_{L} \left({cm}^{-1}\right)\) | \(-0.1172\times {P}^{2} + 4.72464\times P + 205.98\) (fitted from Ref.38) | |
\({\varepsilon }_{\infty ,ZnTe}\) | \(7.3\)(Ref.57) | |
\(x=0\) | \({\omega }_{T} \left({cm}^{-1}\right)\) | \(4.9\times P + 144.4\) (reconstructed from \({S}_{CdTe}\) measured in this work – see text) |
\({\omega }_{L} \left({cm}^{-1}\right)\) | \(4.17\times P + 169.77\) (fitted from Ref.46) | |
\({\varepsilon }_{\infty ,CdTe}\) | \(7.1\)(Ref.57) | |
\(x=0.91\) | \({\omega }_{T,Zn-Te}^{Zn} \left({cm}^{-1}\right)\) | \(4.776\times P + 173.772\) |
\({\omega }_{T,Zn-Te}^{Cd} \left({cm}^{-1}\right)\) | \(3.322\times P + 180.039\) | |
\({x}_{Zn-Te}^{Zn}\) | \({x}^{3}+2\times {x}^{2}\times \left(1-x\right)\) (taken from Ref.31) | |
\({x}_{Zn-Te}^{Cd}\) | \({(1-x)}^{2}\times x\) (taken from Ref.31) | |
\({\omega }^{{\prime} }\left({cm}^{-1}\right)\) | \(25\) | |
\(x=0.11\) | \({\omega }_{T,Cd-Te} \left({cm}^{-1}\right)\) | \(-0.48\times {P}^{2} + 7.59\times P + 146\) |
\({\omega }_{T,Zn-Te} \left({cm}^{-1}\right)\) | \(7.5\times P + 175\) | |
\({x}_{Cd-Te}\) | \(1-x\) | |
\({x}_{Zn-Te}\) | \(x\) |
