SolidHe3Magnetic Phase Diagram from Static Magnetization Measurements

The magnetization of solid ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ has been measured at a density of 24.2 ${\mathrm{cm}}^3$/mole for fields between 0.8 and 5.8 kG, and for temperatures from 0.55 to 2.0 mK. The measurements reveal the magnetic properties of the phases previously observed by Kummer, Mueller, and Adams, and are in qualitative agreement with the phase lines obtained by them. A new second-order transition has been observed for a narrow range of fields above 4.1 kG.