Condensed Phase of Lithium Impurities in Silicon

Abstract

We have calculated the ground-state energy as a function of density for a recently suggested condensed phase of lithium impurities in silicon. The temperature-density phase diagram of this system has been determined and it is found that the critical temperature and density are 3.0\ifmmode\times\else\texttimes\fi{}${10}^{2}$ \ifmmode^\circ\else\textdegree\fi{}K and 3.5\ifmmode\times\else\texttimes\fi{}${10}^{19}$ ${\mathrm{cm}}^{\ensuremath{-}3}$, respectively.