Temperature-Dependence of the Electrical Resistivity of bcc Cr–Fe Alloys

Abstract

The electrical resistivity vs temperature was determined for a bcc Cr+20 at.% Fe alloy from 4.2° to 300°K. The absence of any discontinuity in this curve indicates that the very high temperature‐coefficient of the linear term of the specific heat previously found at that composition is not associated with a phase transformation between room temperature and 4.2°K. For bcc Cr‐alloys with Fe contents increasing from 0 to 16 at.% Fe the resistivity vs temperature anomaly shifts from approximately 308°K to progressively lower temperatures, and the anomalous resistivity increase with decreasing temperature becomes progressively larger. It is quite possible that these anomalies are connected with antiferromagnetic‐paramagnetic transition in the alloys considered.