Specific heat of liquid helium in zero gravity very near the lambda point

@article{Lipa2003SpecificHO,
  title={Specific heat of liquid helium in zero gravity very near the lambda point},
  author={J. Lipa and J. Nissen and D. Stricker and D. R. Swanson and T. Chui},
  journal={Physical Review B},
  year={2003},
  volume={68},
  pages={174518}
}
We report the details and revised analysis of an experiment to measure the specific heat of helium with subnanokelvin temperature resolution near the lambda point. The measurements were made at the vapor pressure spanningthe region from 22 mK below the superfluid transition to 4 μK above. The experiment was performed in Earth orbit to reduce the rounding of the transition caused by gravitationally induced pressure gradients on Earth. Specific-heat measurements were made deep in the asymptotic… Expand
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