Specific Heat of Disordered $^{3}$He
H. Choi, J.P. Davis, J. Pollanen, N. Mulders, and W.P. Halperin
TL;DR
This paper measures the specific heat jumps of superfluid 3He in aerogel, analyzing how elastic scattering affects its thermodynamic properties and comparing different p-wave states.
Contribution
It provides experimental data on specific heat jumps in superfluid 3He within aerogel and interprets results using scattering models, advancing understanding of disordered superfluids.
Findings
Specific heat jumps are suppressed by aerogel-induced scattering.
Pressure dependence of the specific heat jump is characterized.
Comparison of different p-wave states' specific heat is provided.
Abstract
Porous aerogel is a source of elastic scattering in superfluid 3He and modifies the properties of the superfluid, suppressing the transition temperature and order parameter. The specific heat jumps for the B-phase of superfluid 3He in aerogel have been measured as a function of pressure and interpreted using the homogeneous and inhomogeneous isotropic scattering models. The specific heat jumps for other p-wave states are estimated for comparison.
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