Density of states and isomer shift on the rare-earth metal europium

The energy band structure of BCC europium has been calculated self-consistently by using the KKR method. The density of states curve has been computed by using Jepsen and Andersen's tetrahedron method. It has been confirmed that the Fermi energy Esub(F) lies near the dip of the density of states curve, from which the electronic specific heat coefficient #betta# and the paramagnetic susceptibility X are obtained, and their temperature variations are examined. Also a quantitative calculation of the electronic density at the nucleus has been made and the contribution of the conduction electrons to the isomer shift of the 151Eu nucleus obtained. The results seem reasonable if some enhancement contributions are taken into account. (author)