The mineral beryllonite has been characterized by the combination of Raman spectroscopy and infrared spectroscopy. SEM–EDX was used for the chemical analysis of the mineral. The intense sharp Raman band at 1011 cm−1, was assigned to the phosphate symmetric stretching mode. Raman bands at 1046, ...detailed
A new 2D monolayer namely penta-BeP2 carried out by the density functional theory is reported. Our simulations indicate that the 2D penta-BeP2 shows good structural, dynamical and thermal stabilities as demonstrated by cohesive energy calculation, phonon dispersion simulation, and molecular dyna...detailed