Specific Heat Anomalies of PtCo Alloys at Very Low Temperatures

  • P. Costa-Ribeiro
  • M. Saint-Paul
  • D. Thoulouze
  • R. Tournier


At very low temperatures the magnetic behavior of the PtCo system presents different aspects. For “high” concentrations, c≧2 at. %, magnetization measurements1 show the presence of giant moments of 3.6 µB per solute atom. For very dilute alloys, c ≃ 1 ppm, nuclear orientation measurements2 give a critical (Kondo or LSF) temperature T K ≃ 1.6°K. It is thus interesting to study the appearance of the magnetic moments on the impurities below T K for intermediate concentrations, and also the way in which they appear, smoothly or abruptly, each one carrying its maximum moment.


Hyperfine Field Magnetic Impurity Maximum Moment Pure Platinum Schottky Anomaly 
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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • P. Costa-Ribeiro
    • 1
  • M. Saint-Paul
    • 1
  • D. Thoulouze
    • 1
  • R. Tournier
    • 1
  1. 1.Centre de Recherches sur les Très Basses TempératuresCNRSGrenobleFrance

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