Journal of Low Temperature Physics

, Volume 25, Issue 1–2, pp 177–193 | Cite as

Superconducting and normal state properties of Li1+xTi2−xO4 spinel compounds. II. Low-temperature heat capacity

  • R. W. McCallum
  • D. C. Johnston
  • C. A. Luengo
  • M. B. Maple


Heat capacity data are reported which confirm as a bulk effect the previously reported superconductivity in LiTi 2 O 4 . These data also establish LiTi2O4 as a weak couplingd-band superconductor with superconducting state properties well described by the Bardeen—Cooper—Schrieffer theory of superconductivity. The properties of LiTi 2 O 4 are compared with those of other superconducting spinel compounds, and the composition dependence ofT c for Li 1+x Ti 2−x O 4 is discussed. The disappearance of superconductivity forx≳0.1 was found to be correlated with a rapid decrease in the normal-state linear heat capacity coefficient.


Heat Capacity Normal State Magnetic Material Rapid Decrease Superconducting State 
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Copyright information

© Plenum Publishing Corporation 1976

Authors and Affiliations

  • R. W. McCallum
    • 1
  • D. C. Johnston
    • 1
  • C. A. Luengo
    • 1
  • M. B. Maple
    • 1
  1. 1.Institute for Pure and Applied Physical SciencesUniversity of CaliforniaSan Diego, La Jolla

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