Contributions at the La and Sn—In Sites to Superconductivity and Magnetism in LaSnx In3−x Alloys

  • L. B. Welsh
  • A. M. Toxen
  • R. J. Gambino


The bulk properties of the LaSn x In3−x ternary alloys have been found to have a strong, somewhat oscillatory dependence upon the electron/atom (e/a) ratio.1-4 The superconducting transition temperature TT varies from 0.68°K in LaIn3 to a minimum at x = 0.375, a maximum of 1.3°K at x = 1.5, a second minimum at x = 2.3 and a rapid rise to 6.55°K in LaSn3.1−3 The bare electronic density of states N(0) determined from specific heat measurements (after correction for the electron—phonon enhancement factor) has the same qualitative variation with composition.2,3 The normal-state magnetic susceptibility x varies between paramagnetic and diamagnetic behavior in a complex fashion, but in a rough way it also appears to correlate with composition not unlike N(0) and T c .2,3.5 As Havinga et al.1 have shown, this type of oscillatory behavior with the e/a ratio is fairly typical of the alloys of the form MA x B3−x which exist in the AuCu3 phase (M = IIIB transition metal and A, B = Sn, In, Pb, TI).


Nuclear Magnetic Resonance Nuclear Magnetic Resonance Data Knight Shift Nuclear Magnetic Resonance Measurement Pulse Nuclear Magnetic Resonance 
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  1. 1.
    E. E. Havinga, H. Damsma, and M. H. Van Maaren, J. Phys. Chem. Solids 31, 2653 (1970).ADSCrossRefGoogle Scholar
  2. 2.
    A. M. Toxen, R. J. Gambino, and B. J. C. van der Hoeven, Jr., in Proc. 12th Intern. Conf. Low Temp. Phys., 1970, Academic Press of Japan, Tokyo (1971), p. 351.Google Scholar
  3. 3.
    J.L. Levine et al. (to be published).Google Scholar
  4. 4.
    W. D. Grobman, Phys. Rev. B 5, 2924 (1972).ADSCrossRefGoogle Scholar
  5. 5.
    A. M. Toxen, R. J. Gambino, and L. B. Welsh, Phys. Rev. B 8, 90 (1973).ADSCrossRefGoogle Scholar
  6. 6.
    L. B. Welsh, A. M. Toxen, and R. J. Gambino, Phys. Rev. B 42921 (1971)Google Scholar
  7. L. B. Welsh, A. M. Toxen, and R. J. Gambino, Phys. Rev. B 6 1677 (1972).Google Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • L. B. Welsh
    • 1
  • A. M. Toxen
    • 2
  • R. J. Gambino
    • 2
  1. 1.Northwestern UniversityEvanstonUSA
  2. 2.IBM T. J. Watson Research CenterYorktown HeightsUSA

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