Abstract
The thermomechanical coefficient ΔP/ΔT has been measured for liquid3He from 2–20 mK. The temperature difference was established across3He in a porous plug with 90 nm pore diameter. The coefficient was ∼ 5 kPa K−1 and only weakly temperature dependent; in terms of the heat capacity per unit volume, the coefficient varies from ∼ 4C at 2 mK to ∼ C at 20 mK.
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