Skip to main content
SpringerLink
Log in

The relation betweenT c and anharmonicity in Sn-base A15 superconductors

  • Lattice Dynamics and Phase Transitions
  • Published:
Hyperfine Interactions Aims and scope Submit manuscript

Abstract

The absolute value of the recoil-free fraction was measured accurately at three reference temperatures in the range 300 K down to 4 K, in two Sn-baseA 15 superconductors with disparate superconducting properties. The higher-T c compound Nb3Sn (T c≈18K) exhibits low-temperature anharmonicity; this is in contrast to the lattice-dynamics of the low-T c isomorph V3Sn (T c≈4K) in which it is observed that harmonic binding of the Sn atoms is prevalent down to low temperatures. The difference in the superconducting properties of the two compounds is shown to correlate with the considerable difference in their lattice-dynamics.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Receipt of the V3Sn sample from Dr S Abell, School of Metallurgy and Materials, University of Birmingham, UK, is acknowledged with thanks. XRD analyses of the two A15 compounds by Prof. F R L Schöning is greatly appreciated.

  2. B T Matthias, T H Geballe, and V B Compton, Rev. Mod. Phys. 35 (1963) 1.

    Article  ADS  Google Scholar 

  3. G R Hearne, P R Stoddart and H Pollak, Physica C 167 (1990) 415.

    Article  ADS  Google Scholar 

  4. R M Housley and F Hess, Phys. Rev. 146 (1966) 517.

    Article  ADS  Google Scholar 

  5. I V Boidachenko, I A Evstyukhina and Yu N Devyatko, in: Proc. Int. Conf. on Applications of the Mössbauer Effect, Alma-Ata, 1983, vol. 4 eds Yu M Kagan and I S Lyubutin (Gordon and Breach Science Publishers, New York, 1985), p. 1355.

    Google Scholar 

  6. D A Rudman and M R Beasley, Phys. Rev. B30(1984)2590.

    Article  ADS  Google Scholar 

  7. W L McMillan, Phys. Rev. 167(1968)331.

    Article  ADS  Google Scholar 

  8. G S Knapp, S D Bader, Z Fisk, Phys. Rev. B13(1976)3783.

    Article  ADS  Google Scholar 

  9. R C Dynes, Solid State Commun. (1972) 615.

  10. J J Hopfield, Phys. Rev. 186(1969)443.

    Article  ADS  Google Scholar 

  11. G Bergmann and D Rainer, Z. Phys. 263(1973)59.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Physics, University of Witwatersrand, P.O. Wits 2050, Johannesburg, Republic of South Africa

    G. R. Hearne & H. Pollak

Authors
  1. G. R. Hearne
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H. Pollak
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hearne, G.R., Pollak, H. The relation betweenT c and anharmonicity in Sn-base A15 superconductors. Hyperfine Interact 70, 1071–1074 (1992). https://doi.org/10.1007/BF02397514

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02397514

Keywords

Search

Navigation