Advertisement

Variation of the Electron—Phonon Interaction Strength in Superconducting LaIn3−xSnx

  • M. H. van Maaren
  • E. E. Havinga

Abstract

The superconducting transition temperature T c , the magnetic susceptibility, and the thermoelectric power of a large number of pseudobinary alloys with the Cu3Au structure show an oscillatory variation with the number of valence electrons.1 These results have been explained by Brillouin zone effects causing, in addition to variations in the electronic density of states N (0), variations in the electron—phonon interaction strength V Ph.1 Toxen and Gambino2 performed measurements of the specific heat in the system LaIn3− x Sn x . For the composition range 2.5 ≤ x ≤ 3 they also measured T c and found that V Ph remained constant. They concluded that changes in T c are mainly caused by changes in N(0). From transport property measurements Grobman3 concluded that these compounds possess neither local moments nor magnetic phase transitions.

Keywords

Thermoelectric Power Magnetic Phase Transition Superconducting Transition Temperature Oscillatory Variation Philips Research Laboratory 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    E. E. Havinga, H. Damsma, and M. H. van Maaren, J. Phys. Chem. Sol. 31, 2635 (1970).CrossRefGoogle Scholar
  2. 2.
    A. M. Toxen and R. J. Gambino, in Proc. 12th Intern. Conf. Low Temp. Phys., 1970, Academic Press of Japan, Tokyo (1971), p. 351.Google Scholar
  3. 3.
    W. D. Grobman, Phys. Rev. B 5, 2924 (1972).ADSCrossRefGoogle Scholar
  4. 4.
    W. L. McMillan, Phys. Rev. 167, 331 (1968).ADSCrossRefGoogle Scholar
  5. 5.
    G. Gladstone, M. A. Jensen, and J. R. Schrieffer, Superconductivity, R. D. Parks, ed., Dekker, New York (1969), p. 472.Google Scholar
  6. 6.
    W. van Haeringen and H. G. Junginger, Z. Physik 246, 281 (1971).ADSCrossRefGoogle Scholar
  7. 7.
    P. G. deGennes, Superconductivity of Metals and Alloys, Benjamin, New York (1966), p. 101.Google Scholar
  8. 8.
    W. D. Grobman, J. Phys. Chem. Sol. 33, 1307 (1972).ADSCrossRefGoogle Scholar
  9. 9.
    E. E. Havinga, Sol. St. Comm. 11, 1249 (1972).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • M. H. van Maaren
    • 1
  • E. E. Havinga
    • 1
  1. 1.Philips Research LaboratoriesEindhovenNetherlands

Personalised recommendations