Solid-He3Magnetic Susceptibility by High-Precision NMR Measurements

A high-precision NMR technique was used to measure the magnetic susceptibility of bcc solid ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ at several molar volumes over a temperature range well above the ordering temperature. The results resolve a long-standing inconsistency between high-magnetic-field pressure measurements and earlier magnetic susceptibility measurements, give new values of the Curie-Weiss temperature $\theta$ nearly a factor of 2 smaller than previous values, and suggest that $\theta$ follows a power-law volume dependence.