Study of electronic, magnetic, optical and elastic properties of Cu2MnAl a gapless full Heusler compound

The full potential linearized augmented plane wave method with the generalized gradient approximation (FPLAPW-GGA) has been used to understand the electronic, magnetic, optical and elastic properties of Cu2MnAl a full-Heusler compound. The total and partial density of states (DOS), elastic constants, bulk modulus, shear modulus, Young modulus, Poisson ratio and optical constants like complex dielectric constant, refractive index, reflectivity, optical conductivity, etc. are obtained and compared with the available experimental and theoretical results. We have found that Cu2MnAl is a ferromagnet metallic compound, highly anisotropic and less ductile in nature with hardness factor 24.30 GPa.