  Using first principles calculations, we have studied the structural and
elastic properties of SrTMO3 (TM = Rh, Ti, Mo, Zr) under pressure by the plane
wave pseudopotential method based on the density functional theory (DFT) within
the generalized gradient approximation (GGA). The optical properties have been
investigated under zero pressure. It is observed that the calculated lattice
parameters are in good agreement with the available experimental result and
previous theoretical results.
