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Effect of Y-site and Ba-site substitution on thermal properties of YBa2Cu3O7−δ

  • HITC—Transport, Thermodynamic Properties, Electron-Phonon Coupling
  • Published:
Czechoslovak Journal of Physics Aims and scope

Abstract

The effect of partial replacement of Y site with Ca or Ba site with Sr on the thermal and electrical properties of YBa2Cu3O7−δ superconductors was investigated. For Y(Ba1−XSrX)2Cu3O7−δ system, the characteristic enhancement of the thermal conductivity κ(T) below the transition temperature Tc was decreased more slowly by substitution than that for (Y1−XCaX)Ba2Cu3O7−δ system. Electron-phonon interaction in these systems were discussed based on the phonon heat conduction model under the weak coupling d-wave energy gap.

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Authors and Affiliations

  1. Faculty of Engineering, Iwate University, 4-3-5, Ueda, 020, Morioka, Japan

    Hiroyuki Fujishiro, Kiminari Nakasato, Shigeo Takahashi & Manabu Ikebe

Authors
  1. Hiroyuki Fujishiro
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  2. Kiminari Nakasato
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  3. Shigeo Takahashi
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  4. Manabu Ikebe
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Fujishiro, H., Nakasato, K., Takahashi, S. et al. Effect of Y-site and Ba-site substitution on thermal properties of YBa2Cu3O7−δ . Czech J Phys 46 (Suppl 3), 1207–1208 (1996). https://doi.org/10.1007/BF02562718

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  • DOI: https://doi.org/10.1007/BF02562718

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