Low-temperature specific heat of overdoped Bi2201 single crystals

Hiroshi Ikuta, Masaaki Matsuura, Tetsushi Biwa

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


Low-temperature specific heat of heavily overdoped Bi2Sr2CuO6 single crystals was studied. The specific heat under zero magnetic field included a linear-T term, suggesting the presence of a large pair-breaking effect, which we attribute to impurities because their influence on d-wave superconductors increases when the energy gap decreases with carrier overdoping. The field dependence of the electronic specific heat followed well the prediction for an impure d-wave superconductor.

Original languageEnglish
Pages (from-to)361-362
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Publication statusPublished - 2003 May
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: 2002 Aug 202002 Aug 27


  • D-wave symmetry
  • Impurity effect
  • Pair-breaking
  • Specific heat


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