title: Magnetic susceptibility and electrical resistivity of dilute liquid copper - iron alloys.
abstract: Electrical resistivity and magnetic susceptibility measurements on dilute liquid  CuFe alloys are reported. Small additions of Fe increase the resistivity of liquid Cu in a drastic manner, whereas the temperature coefficient is found to be decreased. Due to the localized magnetic moments of the impurity atoms the diamagnetism of Cu is converted into a strong temperature-dependent paramagnetism indicating about 3.5 unpaired d electrons per Fe atom. The electronic properties of  CuFe resemble those of liquid  CuMn and  AuFe which, in the solid state, are known for their Kondo-like behaviour. The experimental findings are tentatively interpreted in terms of spin-disorder scattering with special emphasis on the negative temperature coefficient of the impurity resistivity.
authors.affiliation: Institut für Anorganische Chemie, Universität Wien, Währingerstraße 42, A-1090 Wien, Austria.
authors.forename: P
authors.initials: P
authors.lastname: Terzieff
authors.forename: J G
authors.initials: JG
authors.lastname: Gasser