Vilaplana Cerda, Rosario Isabel; Gomis Hilario, Oscar; Manjón Herrera, Francisco Javier; Ortiz, H. M.; Pérez González, E.; López Solano, Javier; Rodríguez Hernández, Plácida; Múñoz, Alfonso; Errandonea, Daniel; Ursaki, V.; Tiginyanu, Ivan(American Chemical Society, 2013-08)
We report on Raman scattering measurements in mercury digallium selenide (HgGa2Se4) up to 25 GPa. We also performed, for the low-pressure defect-chalcopyrite structure, lattice-dynamics ab initio calculations at high ...
Errandonea, Daniel; Kumar, R.S.; Gomis Hilario, Oscar; Manjón Herrera, Francisco Javier; Ursaki, Veacheslav; Tiginyanu, Ivan(American Institute of Physics (AIP), 2013-12-18)
We report on high-pressure x-ray diffraction measurements up to 19.8¿GPa in zinc digallium telluride (ZnGa2Te4) at room temperature. An irreversible structural phase transition takes place at pressures above 12.1¿GPa and ...