Electrical Resistivity and Transverse Electrical Magnetoresistivity of Chromium

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Abstract
The electrical resistivity of an arc‐melted chromium sample, having the electrical resistivity ratio ρ(290°K)/ρ(4.2°K) = 160, has been measured 4.2° and 319°K. The only anomaly in the ρ‐vs‐T curve, where T is the temperature, occurs at the Néel point, which for this sample is found to be 313.0°±0.2°K. The transverse electrical magnetoresistivity has been determined in magnetic fields up to 12 kOe at 4.2, 16.4, 51.4, 81.9, 93.2, 114.9, 134.0, and 170.7°K. Our results do not exhibit anomalous magnetoresistivity behavior of the type recently observed by Kostina et al. Our measurements show that the relative change in the electrical resistivity (Δρ/ρ) due to the applied magnetic field (Ha) is positive at the above‐given temperatures. Chromium does not obey the Kohler law. The quantity Δρ/ρ is not proportional to Ha2, as predicted by simple theoretical arguments, at any of the above temperatures.