Effect of Hydrostatic Pressure on the Néel Temperature in Chromium

Abstract

The electrical resistivity of high-purity chromium polycrystal was measured as a function of temperature in the range of hydrostatic pressure from atmospheric pressure to 8 kbar. The N\'eel temperature, which manifests itself as the resistivity minimum, was observed to decrease linearly with pressure at a rate of 5.1\ifmmode\pm\else\textpm\fi{}0.2\ifmmode^\circ\else\textdegree\fi{}K/kbar. The relative resistivity anomaly in the neighborhood of the N\'eel temperature was found to be pressure-insensitive. Attempts have been made to interpret the results in terms of the spin-density-wave theory.