Specific heat measurements on 2H-TaS2 single crystals have been carried out between 0.3 and 3 K using the ac calorimetry technique. An upturn in the normal-state data, obtained below 1 K in a 50-kG applied magnetic field, was observed to depend on the measuring frequency. It may be ascribed to a nuclear contribution with a relaxation rate directly proportional to absolute temperature. The basic parameters of the superconducting state have been determined, showing that the material is a very anisotropic, three-dimensional, type II superconductor. The broad transition observed in the heat capacity measurements cannot be analyzed in terms of fluctuations, but rather results from inhomogeneity effects.
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Also at Conversatoire National des Arts et Métiers, Paris, France.
Laboratoire associé au CNRS.
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Garoche, P., Manuel, P., Veyssié, J.J. et al. Dynamic measurements of the low-temperature specific heat of 2H- TaS2 single crystals in magnetic fields. J Low Temp Phys 30, 323–336 (1978). https://doi.org/10.1007/BF00114956
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DOI: https://doi.org/10.1007/BF00114956