EVIDENCE OF SPIN-DISORDER SCATTERING IN LIQUID GOLD IRON-ALLOYS

The influence of small additions of iron on the electrical resistivity of liquid gold has been investigated for an iron content chi(Fe), les s than or equal to 0.24. The drastic increase in the resistivity due t o small amounts of iron as well as the negative temperature coefficien t apparent in the more concentrated alloys are not understandable on t he basis of the Faber-Ziman formalism. The localization of large magne tic moments on the impurity atoms is assumed to be responsible for thi s exceptional behaviour. A tentative description is presented in terms of spin-disorder scattering including some particular aspects of the Kondo effect.