  We report results on the ab-initio study of the mechanical, electronic and
structural properties of the iron Pnictide compound CaFe_2 As_2 at zero
pressure. Ground State energy computation was done within the Density
Functional Theory (DFT) using the Projector Augmented Wave (PAW) Pseudo
Potentials and the Plane Wave (PW) basis set. The Generalized Gradient
Approximation (GGA) facilitated the exchange-correlation.
