Journal of Low Temperature Physics

, Volume 51, Issue 1–2, pp 135–148 | Cite as

Thermodynamics of superconducting lanthanum

  • R. Baquero
  • J. P. Carbotte
Article

Abstract

We have calculated the thermodynamics of superconducting lanthanum from numerical solutions of the finite-temperature Eliashberg equations, written on the imaginary frequency axis, with electron-phonon kernel taken from the available tunneling data. We compare the theory with a recent specific heat determination of the thermodynamics. Also, we study several possible changes in the spectral density chosen to improve agreement with experiment. Our favored spectrum is obtained by a constant scaling of the tunneling spectral density chosen to increase the mass enhancement parameter from 0.79 to approximately 1.0.

Keywords

Magnetic Material Spectral Density Lanthanum Imaginary Frequency Frequency Axis 

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Copyright information

© Plenum Publishing Corporation 1983

Authors and Affiliations

  • R. Baquero
    • 1
  • J. P. Carbotte
    • 2
  1. 1.Departamento de FisicaInstituto de Ciencias de la Universidad Autonoma de PueblaPueblaMexico
  2. 2.Physics DepartmentMcMaster UniversityHamiltonCanada

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