Spin Fluctuations in Itinerant Electron Antiferromagnetic Cr_1−xV_x System

Abstract

Low temperature specific heat of the itinerant electron antiferromagnetic Cr_1−xV_x alloys was measured in the temperature range between 1.4 and 5.0 K. The V concentration dependence of the linear specific heat coefficient is interpreted in terms of two contributions, the effect of spin fluctuations and the variation of the density of states at the Fermi level resulting from the antiferromagnetic band gap. This interpretation explains consistently the enhancement of the electrical resistivity in the antiferromagnetic state.