Evidence for a New Phase of Solid He 3

摘要: Measurements of the melting pressure a sample ${\mathrm{He}}^{3}$ containing less than 40-ppm ${\mathrm{He}}^{4}$ impurities, self-cooled to below 2 mK in Pomeranchuk compression cell, indicate existence new phase solid 2.7 fundamentally different nature anticipated antiferromagnetically ordered state. At lower temperatures, evidence possibly further transition is observed. We discuss these measurements and supporting temperature measurements.