Interaction effects in copper-manganese alloys at low temperatures

Abstract

The results of resistivity measurements on CuMn alloys from 10 ppm to 1% between 30 mK and 4K are presented. They show the important role played by interactions between the manganese impurities even at extremely low concentrations. An anomalous variation of the resistivity at low values of (T/c) has been observed. Several possible explanations for this behaviour are suggested.