Anomalous thermodynamic power laws near topological transitions in nodal superconductors

Bayan Mazidian, J Quintanilla, Hillier Adrian D., James F Annett

Research output: Contribution to journalArticle (Academic Journal)peer-review

17 Citations (Scopus)


Unconventional superconductors are most frequently identified by the observation of power-law behavior on low-temperature thermodynamic or transport properties, such as specific heat. Here, we show that, in addition to the usual point and line nodes, a much wider class of different nodal types can occur. These new types of nodes typically occur when there are transitions between different types of gap node topology, for example, when point or line nodes first appear as a function of some physical parameter. We identify anomalous, noninteger thermodynamic power laws associated with these new nodal types, and give physical examples of superconductors in which they might be observed experimentally, including the noncentrosymmetric superconductor Li_2Pd_{3−x}Pt_xB
Original languageEnglish
Article number224504
Number of pages7
JournalPhysical Review B: Condensed Matter and Materials Physics
Issue number22
Publication statusPublished - 12 Dec 2013

Bibliographical note

Article co-authored with Bristol PhD student and external collaborators


  • Unconventional superconductors
  • specific heat
  • noncentrosymmetric superconductor


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