Heat capacity of type I superconductivity in the Dirac semimetal PdTe${}_2$

Abstract

Type I superconductivity has recently been reported for the Dirac semimetal PdTe${}_2$ (Tc approximately 1.6K) with, remarkably, multiple critical fields and a complex phase diagram. Here, measurements of the specific heat utilizing a thermal relaxation technique are presented. Conventional weak-coupling BCS superconductivity is confirmed by examining the temperature dependence of the specific heat in zero field. By probing the latent heat accompanying the superconducting transition, thermodynamic evidence for type I superconductivity is attained. The presence of the intermediate state is observed as a significant broadening of the superconducting transition onto lower temperatures at high fields as well as irreversibility in the specific heat in zero field cooled data at 8.5 mT.

arXiv comment6 pages, 4 figures and Supplemental Material

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Cited by in corpus (5)

• Bulk superconductivity and non-trivial band topology analysis of Pb2Pd
• Superconducting and structural properties of the type-I superconductor PdTe2 under high pressure
• Detailed magneto-heat capacity analysis of SnAs topological superconductor
• Disorder induced transition from type-I to type-II superconductivity in the Dirac semimetal PdTe${}_2$
• Linear Magnetoresistance and Type-I Superconductivity in $\beta$-IrSn${}_4$