In this work we present a ¿rst-principles density functional study of the vibrational properties of ZnAl2
O4
and ZnGa2
O4 as function of hydrostatic pressure. Based on our previous structural characterization of these
two ...
[EN] Optical absorption measurements at high pressure have been performed in two phases of the ordered -vacancy compound (OVC) ZnGa2Se4: defect stannite (DS) and defect chalcopyrite (DC). The direct bandgap energy of both ...