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Specific Heat Anomalies of PtCo Alloys at Very Low Temperatures

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

Abstract

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.

Keywords

Hyperfine Field Magnetic Impurity Maximum Moment Pure Platinum Schottky Anomaly 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    J.C. Crangle and W.R. Scott, J. Appl. Phys. 36, 921 (1965).ADSCrossRefGoogle Scholar
  2. 2.
    J.C. Gallop and I.A. Campbell, Sol. St. Comm. 6, 831 (1968).ADSCrossRefGoogle Scholar
  3. 3.
    B. Tissier and R. Tournier, Sol. St. Comm. 11, 895 (1972).ADSCrossRefGoogle Scholar
  4. 4.
    O. Bethoux, M. Ferrari, and B. Cornut, Rev. de Phys. Appliquée 5, 865 (1970).CrossRefGoogle Scholar
  5. 5.
    K.H. Gobrecht and M. Saint-Paul, in Proc. Third ICEC, Berlin, 1970 p. 235.Google Scholar
  6. 6.
    J.R.G. Keyston, A. Lacaze, and D. Thoulouze, Cryogenics 8, 295 (1968).ADSCrossRefGoogle Scholar
  7. 7.
    J.C.G. Wheeler, J. Phys. C 2, 135 (1969)ADSCrossRefGoogle Scholar
  8. B.M. Boerstoel and C. Van Baarle, J. Appl. Phys. 41, 1079 (1970).ADSCrossRefGoogle Scholar
  9. 8.
    P.E. Bloomfield and D.R. Hamann, Phys. Rev. 164, 856 (1970).ADSCrossRefGoogle Scholar
  10. 9.
    B.B. Triplett and N.E. Phillips, Phys. Rev. Lett. 27, 1001 (1971).ADSCrossRefGoogle Scholar
  11. 10.
    A.C. Gossard, A.M. Portis, M. Rubinstein, and R.M. Lindquist, Phys. Rev. 138A, 1415 (1965).ADSCrossRefGoogle Scholar
  12. 11.
    J.L. Tholence and R. Tournier, Phys. Rev. Lett. 25, 867(1970)ADSCrossRefGoogle Scholar
  13. E.C. Hirschkoff, M.R. Shanabarger, O.G. Symko, and J.C. Wheatley J. Low Temp. Phys. 5, 545 (1971)ADSCrossRefGoogle Scholar

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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