Note on the Paramagnetic Susceptibility and the Gyromagnetic Ratio in Metals

Abstract

Although the orbital magnetic moments of the electrons in metals are “ quenched ” by the crystal field, their contribution to the paramagnetic susceptibility for partly filled degenerate bands is shown to be of the same order of magnitude as the Pauli spin paramagnetism. This contribution corresponds to the so-called “ temperature independent high frequency term ” in the theory of the paramagnetic susceptibility of atoms. Due to this contribution, the gyromagnetic ratio is reduced by an appreciable amount.