Pressure and linear heat capacity in the superconducting state of thoriated UBe13

Abstract

Even well below Tc, the heavy-fermion superconductor (U,Th)Be13 has a large linear term in its specific heat. We show that under uniaxial pressure, the linear heat capacity increases in magnitude by more than a factor of two. The change is reversible and suggests that the linear term is an intrinsic property of the material. In addition, we find no evidence of hysteresis or of latent heat in the low-temperature and low-pressure portion of the phase diagram, showing that all transitions in this region are second order.

arXiv comment5 pages, 4 figures

References in corpus (5)

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• Impurity-Induced Virtual Bound States in d-Wave Superconductors
• Odd Frequency Pairing in the Kondo Lattice
• Extended Gapless Regions in Disordered d_{x^2-y^2}-Wave Superconductors
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