Pseudopotentials, Muffin Tins, and Fermi-Surface Anisotropies in the Alkalis

Abstract

Overlapping pseudopotentials $v\left(q\right)\mathrm{}$ correspond to mean minimal muffin-tin potentials $v\left(q\right)a\left(q\right)\mathrm{}$, where $a\left(q\right)\mathrm{}$ is the liquid-metal structure factor. Potentials thus derived are consistent with data fitted to observed Fermi-surface anisotropies in the alkali solids.