Hartree-fock cluster investigations of electronic structure and nuclear quadrupole interaction in the superionic conductor li3n

The nuclear quadrupole interactions for7Li and14N nuclei are studied for lithium nitride crystal using the Hartree-Fock cluster procedure to obtain the electronic structure. The influence of the Madelung potential due to the ions outside the cluster was incorporated in a first-principle manner. Our results for the quadrupole coupling constants will be compared with experimental data and the results of a recent band calculation