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Effect of superimposed electrical and thermal gradients in bismuth-based high-temperature superconductors.

Author(s) : DOYLE R. A., GRIDIN V. V.

Type of article: Article

Summary

The superconducting analogue of the fountain effect in superfluid liquid helium is briefly reviewed and experimental evidence is presented for the existence of the effect in bulk BSCCO 2212 and 2223, in which it is similar. The authors show that the effect is observable in other high-critical temperature systems, where the polycrystalline nature of bulk samples results in intrinsic microbridge-like nature of the conduction paths. Results are presented showing the temperature dependence of this effect in bulk bismuth-based high-temperature superconductors. The study supports the importance of weak-link related effects in the thermoelectricity of high-critical temperature cuprates.

Details

  • Original title: Effect of superimposed electrical and thermal gradients in bismuth-based high-temperature superconductors.
  • Record ID : 1994-0027
  • Languages: English
  • Source: Cryogenics - vol. 33 - n. 5
  • Publication date: 1993/05

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