Calculations of Electronic Specific Heat and Paramagnetic Susceptibility of Chromium

Abstract

Electronic specific heats for various transition metals at higher temperature are deduced from experimental results. It is pointed out that the transition metals with small values of paramagnetic susceptibility and coefficient of low temperature specific heat, γ 0 , have larger values of the electronic specific heat than the extrapolation of γ 0 T , and the metals with large values of these have smaller values of the electronic specific heat than the extrapolation of γ 0 T , at higher temperatures. With use of electronic state density determined from the data of γ 0 , for Cr-Fe and Cr-V alloys, the temperature variations of electronic specific heat and spin susceptibility of Cr are calculated at arbitrary temperatures. The calculated electronic specific heats satisfactorily agree with the experimental results, whereas the calculated spin susceptibilities are smaller than the experimental results. It is pointed out that the main difference is attributable to the orbital paramagnetic susceptibility.