The specific heat of Na0.3CoO41.3H2O: Possible non-magnetic pair breaking, two energy gaps, and strong fluctuations in the superconducting state

N. E. Phillips, N. Oeschler, R. A. Fisher, J. E. Gordon, M. L. Foo, Robert Joseph Cava

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two samples of Na0.3CoO21.3H2O have very different specific heats reflecting extreme sensitivity to minor differences in sample treatment. They have nearly the same superconducting transition temperatures with strong deviations from BCS behavior and evidence of two energy gaps that are markedly different for the two samples. Non-magnetic scattering centers may have a strong, but unusual, pair-breaking effect.

Original languageEnglish (US)
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages661-662
Number of pages2
DOIs
StatePublished - Dec 1 2006
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: Aug 10 2006Oct 17 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period8/10/0610/17/06

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Keywords

  • NaCoO ·1.3HO
  • Specific heat
  • Superconductivity
  • Two energy gaps

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