Self-consistent pseudopotential method for localized configurations: Molecules

Abstract
A method is proposed using pseudopotentials in a self-consistent manner to describe localized configurations such as molecules, surfaces, impurities, vacancies, finite chains of atoms, adsorbates, and solid interfaces. Specific application is made to the Si2 molecule. The Si2 energy levels and charge densities are calculated with reasonable accuracy using a plane-wave basis sct.