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Journal of Low Temperature Physics

, Volume 3, Issue 5, pp 537–544 | Cite as

The effect of nonmagnetic 4f resonances on the superconducting transition temperature:ThCe alloys

  • J. G. Huber
  • M. B. Maple
Article

Abstract

It is shown that a recent theory due to Kaiser concerning the effect of nonmagnetic resonant states on superconductivity appropriately and accurately describes the dependence of the transition temperatureTc ofThCe alloys on Ce concentration. The parameters describing thef-resonant states in the Anderson model are determined by fitting Kaiser's theory to the data, and reasonable values are obtained. With the assumption that the Hartree-Fock level width remains constant under pressure, it is shown that thef level moves further above the Fermi level as the pressure is increased. This is discussed in relation to recent pressure experiments on La and La compounds containing Ce impurities.

Keywords

Transition Temperature Magnetic Material Fermi Level Resonant State Superconducting Transition Temperature 
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.
    A. B. Kaiser,J. Phys. C 3, 409 (1970).Google Scholar
  2. 2.
    G. Boato, G. Gallinaro, and C. Rizzuto,Phys. Rev. 148, 353 (1966).Google Scholar
  3. 3.
    A. D. Caplin and C. Rizzuto,Phys. Rev. Letters 21, 746 (1968).Google Scholar
  4. 4.
    J. W. Anderson, D. T. Peterson, and D. K. Finnemore,Phys. Rev. 179, 472 (1969).Google Scholar
  5. 5.
    J. E. Gordon, H. Montgomery, R. J. Noer, G. R. Pickett, and R. Tobón,Phys. Rev. 152, 432 (1966).Google Scholar
  6. 6.
    W. R. Decker, D. T. Peterson, and D. K. Finnemore,Phys. Rev. Letters 18, 899 (1967); W. R. Decker and D. K. Finnemore,Phys. Rev. 172, 430 (1968).Google Scholar
  7. 7.
    J. H. van Wucht,Philips Res. Rept. 12, 351 (1957); R. T. Weiner, W. E. Freeth, and G. J. Raynor,J. Inst. Metals 86, 185 (1957–58); D. S. Evans and G. V. Raynor,J. Nucl. Mater. 5, 308 (1962); M. Norman, I. R. Harris, and G. J. Raynor,J. Less-Common Metals 12, 465 (1967).Google Scholar
  8. 8.
    K. A. Gschneidner and R. Smoluchowski,J. Less-Common Metals 5, 374 (1963).Google Scholar
  9. 9.
    I. R. Harris and G. J. Raynor,J. Less-Common Metals 6, 70 (1964).Google Scholar
  10. 10.
    M. K. Wilkinson, H. R. Child, C. J. McHargne, W. C. Koehler, and E. O. Wollan,Phys. Rev. 122, 1409 (1961); O. V. Lounasmaa,Phys. Rev.,133, A502 (1964); N. E. Phillips, J. C. Ho, and T. F. Smith,Phys. Letters 27A, 49 (1968).Google Scholar
  11. 11.
    M. R. McPherson, D. Wohlleben, M. B. Maple, and G. E. Everett, to be presented at the International Conference on Magnetism, Grenoble, France, September 14–19, 1970.Google Scholar
  12. 12.
    D. T. Peterson, D. F. Page, R. B. Rump, and D. K. Finnemore,Phys. Rev. 153, 701 (1967).Google Scholar
  13. 13.
    C. W. Dempesy, private communication of unpublished data.Google Scholar
  14. 14.
    A. A. Abrikosov and L. P. Gor'kov,Zh. Eksperim. i Teor. Fiz. 39, 1781 (1960) [English trans.,Soviet Phys.—JETP 12, 1243 (1961)].Google Scholar
  15. 15.
    S. Skalski, O. Betbeder-Matibet, and P. R. Weiss,Phys. Rev. 136, A1500 (1964).Google Scholar
  16. 16.
    L. F. Bates and M. M. Newmann,Proc. Phys. Soc. (London)72, 345 (1958).Google Scholar
  17. 17.
    M. B. Maple, J. G. Huber, and K. S. Kim,Solid State Commun. 8, 981 (1970).Google Scholar
  18. 18.
    P. W. Anderson,Phys. Rev. 124, 41 (1961).Google Scholar
  19. 19.
    R. Aoki and T. Ohtsuka,J. Phys. Soc. Japan 23, 955 (1967);ibid. 26, 651 (1969).Google Scholar
  20. 20.
    A. P. Klein and A. J. Heeger,Phys. Rev. Letters 15, 786 (1965);Phys. Rev. 144, 458 (1966); B. Kjöllerström, D. J. Scalapino, and J. R. Schrieffer,Phys. Rev. 148, 665 (1966).Google Scholar
  21. 21.
    K. A. Gschneidner, Jr.,Rare Earth Research III, Proceedings of the Fourth Conference on Rare Earth Research, ed. Leroy Eyring, Gordon and Breach, New York, 1964.Google Scholar
  22. 22.
    J. F. Wilkins, J. G. Clark, and T. E. Leinhardt,Bull. Am. Phys. Soc. 7, 579 (1962).Google Scholar
  23. 23.
    B. Coqblin and A. Blandin,Advan. Phys. 17, 281 (1968).Google Scholar
  24. 24.
    J. Bardeen, L. N. Cooper, and J. R. Schrieffer,Phys. Rev. 108, 1175 (1957).Google Scholar
  25. 25.
    K. A. Gschneidner, Jr.,Solid State Phys. 16, 275 (1964).Google Scholar
  26. 26.
    C. Palmy, R. Flach, and P. de Trey, International Conference on Science of Superconductivity, Stanford University, August 26–29, 1969.Google Scholar
  27. 27.
    T. F. Smith,Phys. Rev. Letters 17, 386 (1966).Google Scholar
  28. 28.
    M. B. Maple, J. Wittig, and K. S. Kim,Phys. Rev. Letters 23, 1375 (1969).Google Scholar
  29. 29.
    M. B. Maple and T. F. Smith,Solid State Commun. 7, 515 (1969).Google Scholar
  30. 30.
    M. B. Maple and K. S. Kim,Phys. Rev. Letters 23, 118 (1969).Google Scholar
  31. 31.
    T. Sugawara and H. Eguchi,J. Phys. Soc. Japan 21, 725 (1966).Google Scholar
  32. 32.
    M. B. Maple and Z. Fisk, inProceedings of the Eleventh International Conference on Low Temperature Physics, St. Andrews, Scotland, 1968, eds. D. M. Findlayson and D. M. McCall, St. Andrews University Press, St. Andrews, Scotland, 1968; M. B. Maple, Ph.D. thesis, University of California, San Diego, 1969, unpublished.Google Scholar
  33. 33.
    A. S. Edelstein,Phys. Rev. Letters 20, 1348 (1968).Google Scholar
  34. 34.
    P. W. Anderson and A. M. Clogston,Bull. Am. Phys. Soc. 6, 124 (1961); J. Kondo,Progr. Theoret. Phys. (Kyoto) 28, 846 (1962); P. G. deGennes,J. Phys. 23, 630 (1962).Google Scholar
  35. 35.
    J. R. Schrieffer and P. A. Wolff,Phys. Rev. 149, 491 (1966).Google Scholar
  36. 36.
    Ref. 28 and references cited therein.Google Scholar
  37. 37.
    H. Suhl,Phys. Rev. Letters 19, 442 (1967); M. J. Levine and H. Suhl,Phys. Rev. 171, 567 (1968); M. J. Levine, T. V. Ramakrishnan, and R. A. Weiner,Phys. Rev. Letters 20, 1370 (1968); N. Rivier and M. J. Zuckermann,Phys. Rev. Letters 21, 904 (1968).Google Scholar

Copyright information

© Plenum Publishing Corporation 1970

Authors and Affiliations

  • J. G. Huber
    • 1
  • M. B. Maple
    • 1
  1. 1.Institute for Pure and Applied Physical SciencesUniversity of CaliforniaSan Diego, La Jolla

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