Resonant Screening of Foreign Atoms in Metals

Abstract

The nonmonotonic variation found by Asik, Ball, and Slichter for the strength of the $p$ wave inside a foreign impurity atom dissolved in lithium or sodium metal can be fit by a simple resonance formula. A crucial test of the resonance hypothesis is the predicted spin-flip scattering cross section of (4±1)×${10}^{-17\mathrm{}}$ ${\mathrm{cm}}^2$ for bismuth in sodium.