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Pressure Dependence of the Specific Heat of Heavy-Fermion Compounds

  • N. E. Phillips
  • R. A. Fisher
  • S. E. Lacy
  • C. Marcenat
  • J. A. Olsen
  • J. Flouquet
  • A. Amato
  • D. Jaccard
  • Z. Fisk
  • A. L. Giorgi
  • J. L. Smith
  • G. R. Stewart

Abstract

Measurement of the properties of materials as a function of pressure (P) provides an additional dimension for comparison with models and theoretical calculations. It also provides a relatively sound basis for establishing correlations between different properties. For example, if one looks for correlations between superconductivity and magnetic properties by studying series of different compounds or alloys, one is forced to resort to comparisons that are complicated, to a very substantial degree, by chemical and structural differences. If instead one studies the pressure dependence of the properties of a single material, only one relatively simple parameter, the volume (V), is changed. Measurement of the pressure dependence of the properties of heavy-fermion compounds (HFC) is particularly fruitful because the 4f and 5f electrons, which play the central role in the phenomenon, are extremely sensitive to pressure, and large effects are observed at modest pressures. Although the electrical resistivity (ρ) and the magnetic susceptibility (χ) of a number of HFC have been measured as a function of pressure, it is only recently that data for the specific heat (C) have become available for non-zero pressure. We describe here measurements of C(P) to P ∼ 9 kbar for CeA13 [1], CeCu6 [2], UBe13 [3], and UPt3 [4]. Independent measurements of C(P) to P ∼ 6 kbar have been reported for CeCu2Si2 [5].

Keywords

Pressure Dependence Heavy Fermion Magnetic Field Dependence Spin Fluctuation Kondo Lattice 
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.
    G. E. Brodale, R. A. Fisher, N. E. Phillips and J. Flouquet, Phys. Rev. Lett. 56: 390 (1985).CrossRefGoogle Scholar
  2. 2.
    R. A. Fisher, S. E. Lacy, C. Marcenat, N. E. Phillips, J. Flouquet, A. Amato and D. Jaccard, to be published.Google Scholar
  3. 3.
    J. A. Olsen, R. A. Fisher, N. E. Phillips, Z. Fisk, A. L. Giorgi, J. L. Smith and G. R. Stewart, to be published.Google Scholar
  4. 4.
    G. E. Brodale, R. A. Fisher, N. E. Phillips, G. R. Stewart and A. L. Giorgi, Phys. Rev. Lett. 57: 234 (1986).CrossRefGoogle Scholar
  5. 5.
    A. Bleckwedel and A. Eichler, Solid State Commun. 56: 693 (1985).CrossRefGoogle Scholar
  6. 6.
    K. Andres, J. E. Graebner and H. R. Ott, Phys. Rev. 35: 1779 (1975).Google Scholar
  7. 7.
    C. D. Bredl, S. Horn, F. Steglich, B. Luthi and R. M. Martin, Phys. Rev. Lett. 52: 1982 (1984).CrossRefGoogle Scholar
  8. 8.
    C. D. Bredl, H. Spille, U. Rauchschwalbe, W. Lieke, F. Steglich, G. Cordier, A. Assmus, M. Herrmann and J. Aarts, J. Magn. Magn. Mat. 31–34: 373 (1983).CrossRefGoogle Scholar
  9. 9.
    A. Amato, D. Jaccard, J. Flouquet, F. Lapierre, J. L. Tholence, R. A. Fisher, S. E. Lacy, J. A. Olsen and N. E. Phillips, to be published.Google Scholar
  10. 10.
    K. Satoh, F. Fujita, Y. Maeno, Y. Onuki and T. Komatsubara, Solid State Commun. 56: 327 (1985).CrossRefGoogle Scholar
  11. 11.
    F. Steglich, U. Rauchschwalbe, U. Gottwick, H. M. Mayer, G. Spain, N. Grewe, U. Poppe and J.. J. M. Franse, J. Appl. Phys. 57: 3054 (1985).CrossRefGoogle Scholar
  12. 12.
    R. A. Fisher, S. E. Lacy, C. Marcenat, J. A. Olsen, N. E. Phillips, Z. Fisk, A. L. Giorgi, J. L. Smith and G. R. Stewart, this conference.Google Scholar
  13. 13.
    M. J. Besnus, J. P. Kappler, P. Lehmann and A. Meyer, Solid State Commun. 55: 779 (1985).CrossRefGoogle Scholar
  14. 14.
    H. R. Ott, H. Rudigier, Z. Fisk and J. L. Smith, Phys. Rev. Lett. 50: 1595 (1983)CrossRefGoogle Scholar
  15. H. R. Ott, H. Rudigier, Z. Fisk and J. L. Smith, “Moment Formation in Solids”, ed. W. J. L. Buyers (Plenum, NY) p. 305 (1984).Google Scholar
  16. 15.
    F. Steglich, “Theory of Heavy Fermions and Valence Fluctuations”, ed. T. Kasuya and T. Saso, Springer Series in Solid State Sciences 62:23 (1985).Google Scholar
  17. 16.
    G. R. Stewart, Z. Fisk, J. O. Willis and J. L. Smith, Phys. Rev. Lett. 52: 679 (1984).CrossRefGoogle Scholar
  18. 17.
    A. de Visser, J. J. M. Franse, A. Menovsky and T. M. Palstra, J. Phys. F14: L191 (1984).CrossRefGoogle Scholar
  19. 18.
    S. Doniach and S. Engelsberg, Phys. Rev. Lett. 17: 750 (1966).CrossRefGoogle Scholar
  20. 19.
    W. F. Brinkman and S. Engelsberg, Phys. Rev. 169: 417 (1968).CrossRefGoogle Scholar
  21. 20.
    M. S. Wire, J. D. Thompson and A. Fisk, Phys. Rev. B30: 5591 (1984).CrossRefGoogle Scholar
  22. 21.
    M. Niksch, B. Luthi and K. Andres, Phys. Rev. B22: 5774 (1980).CrossRefGoogle Scholar
  23. 22.
    A. Shibota, G. Oomi, Y. Onuki and T. Komatsubara, J. Phys. Soc. (Japan) 55: 2086 (1986).CrossRefGoogle Scholar
  24. 23.
    R. A. Robinson, J. D. Axe, A. I. Goldman, Z. Fisk, J. L. Smith and H. R. Ott, Phys. Rev. B33: 6488 (1986). (k calculated from elastic constants.)Google Scholar
  25. 24.
    A. de Visser, J. J. M. Franse and A. Menovsky, to be published.Google Scholar
  26. 25.
    M. Ribault, A. Benoit, J. Flouquet and J. Palleau, J. Phys. (Paris) 40: L413 (1979).CrossRefGoogle Scholar
  27. 26.
    A. de Visser, J. J. M. Franse and A. Menovsky, J. Phys. F: Met. Phys. 15: L53 (1985).CrossRefGoogle Scholar
  28. 27.
    C. J. Pethick, D. Pines, K. F. Qader, K. S. Bedell and G. E. Brown, Phys. Rev. Lett. 57: 1955 (1986).CrossRefGoogle Scholar
  29. 28.
    A. de Visser, A. Menovsky and J. J. M. Franse, to be published.Google Scholar
  30. 29.
    B. Bellarbi, A. Benoit, D. Jaccard, J. M. Mignot and H. F. Braun, Phys. Rev. B30: 1102 (1984).CrossRefGoogle Scholar
  31. 30.
    J. D. Thompson and Z. Fisk, Phys. Rev. B31: 389 (1985).CrossRefGoogle Scholar
  32. 31.
    H. R. Ott, H. Rudigier, Z. Fisk and J. L. Smith, Phys. Rev. Lett. 50: 1595 (1983).CrossRefGoogle Scholar
  33. 32.
    A. Auerbach and K. Levin, to be published.Google Scholar
  34. 33.
    G. E. Brodale, R. A. Fisher, N. E. Phillips, C. M. Lisse and A. S. Edelstein, Solid State Commun. 56, 271 (1985).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • N. E. Phillips
    • 1
  • R. A. Fisher
    • 1
  • S. E. Lacy
    • 1
  • C. Marcenat
    • 1
  • J. A. Olsen
    • 1
  • J. Flouquet
    • 2
  • A. Amato
    • 3
  • D. Jaccard
    • 3
  • Z. Fisk
    • 4
  • A. L. Giorgi
    • 4
  • J. L. Smith
    • 4
  • G. R. Stewart
    • 4
  1. 1.MMRD, Lawrence Berkeley LaboratoryUniversity of CaliforniaBerkeleyUSA
  2. 2.CRTBT/CNRSGrenoble CedexFrance
  3. 3.Physics DepartmentUniversity of GenevaGenevaSwitzerland
  4. 4.MSTLos Alamos National LaboratoryLos AlamosUSA

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