The latent heat for solidification of **3He has been measured along the **3He melting curve between 23 and 1 mK. A temperature scale is established which depends only on measurements of heat, pressure and volume, and on the condition that the entropy of solid **3He approaches R ln 2 at high temperatures. The A feature of the melting curve which suggests itself as a thermometric fixed point is found to be T//A equals 2. 75 plus or minus 0. 11 mK. The agreement between this value and independent measurements of T//A, based on nuclear or electronic paramagnetism, Johnson noise thermometry or on properties of liquid **3He, is briefly discussed.
|Original language||English (US)|
|Number of pages||4|
|Journal||[No source information available]|
|State||Published - Jan 1 1976|
ASJC Scopus subject areas