The Electrical Resistance of Some Dilute Gold Alloys
Measurements of the resistivity of dilute alloys of noble metals with transition elements gave rise to the supposition that only transition elements with 5 or 6 electrons in the d-shell would cause anomalies in the electrical resistance at low temperatures. Therefore a number of gold-rhenium and gold-technetium alloys were investigated. Rhenium caused deep minima in the electrical resistivity, along with negative values for the magnetoresistance. From the results on the gold-technetium alloys it could be concluded that the solid solubility of technetium in gold at 1000°C is very small, and therefore no conclusions could be drawn about technetium as a possible cause of anomalies in the resistance.