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Specific heat of the YBCO ceramics: theoretical models and experiment.

[In Russian. / En russe.]

Author(s) : KUDRJAVCEV I. N., NEMCHENKO K. E., DEREVJANKO V. V., FINKEL V. A., ZEMLJANOV M. G., PARSHIN P. P.

Type of article: Article

Summary

Specific heat measurement results are presented for the YBCO(-) ceramics in the temperature range 5-250 K. Various theoretical approaches to the lattice specific heat of high-temperature superconductors are analysed. A model including acoustical and optical phonon modes is proposed. On the basis of this model, different parameters of the YBCO(-) phonon system are determined, a comparative analysis of the superconducting and non-superconducting states is performed.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1993-1845
  • Languages: Russian
  • Source: Fiz. nizk. Temp. - vol. 17 - n. 6
  • Publication date: 1991
  • Document available for consultation in the library of the IIR headquarters only.

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