Heat capacity peak in solid 4He: Effects of disorder and 3He impurities

Abstract

Heat capacity measurements with significantly improved resolution find the presence of a peak in a solid 4He sample in coexistence with liquid. With improved crystallinity, the peak decreases in height and moves to lower temperature. A hysteretic heat capacity signature consistent with 3He-4He phase separation, not detected in an earlier work is clearly observed.

arXiv comment14 pages, 3 figures

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Cited by in corpus (10)

• Non-linear Elastic Response in Solid Helium: critical velocity or strain
• A glassy contribution to the heat capacity of hcp ${}^4$He solids
• Supersolid behavior in confined geometry
• Simultaneous Measurements of the Torsional Oscillator Anomaly and Thermal Conductivity in Solid 4He
• Holographic Supersolids
• Tunnelling defect nanoclusters in hcp 4He crystals: alternative to supersolidity
• Superfluid transition in a correlated defect network
• Quantized vortex state in hcp solid 4He
• The role of glass dynamics in the anomaly of the dielectric function of solid helium
• Off-diagonal Long-Range Order and Supersolidity in a Quantum Solid with Vacancies