A measurement of the thermal expansion coefficient of 3He at 0 bar from 0.6 to 3 mK is presented. At the superfluid transition the expansion coefficient changes by 1.1 × 10\s-6 mK\s-1. This change is consistent with predictions based on thermodynamic arguments and existing heat capacity data.
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This work was supported by NSF grant DMR 79-25098.
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Swift, G.W., Packard, R.E. Thermal expansion coefficient of 3He near 1 mK. J Low Temp Phys 43, 517–520 (1981). https://doi.org/10.1007/BF00115612
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DOI: https://doi.org/10.1007/BF00115612