Measurement of the Magnetic Scattering Time by Weak Localization

The influence of magnetic impurities on weak localization is investigated. Thin Mg films are covered with $\frac{1}{1000}$ monolayer of Fe. A temperature-independent magnetic scattering time ${\ensuremath{\tau}}_{s}=4.7\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}12}$ sec is obtained.