Single electron tunneling and superconducting energy gap in YBa 2 Cu 3 O 7-δ and TlBa 2 Ca 2 Cu 3 O 9±δ films

R. T. Kao*, S. J. Wang, S. P. Chen, Jenh-Yih Juang, Kaung-Hsiung Wu, T. M. Uen, Y. S. Gou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

The granularity of the high-Tc cuprates, though has been considered to be obnoxious for many applications, appeared to giving rise to the exotic incremental charging effects. This paper further demonstrates that it can also serve as an alternative for extracting the superconducting gap parameters of these materials. The results of 2Δ(0)/K B T c ≈6-8(YBCO) and ≈ 9-11(Tl-1223), though are consistent with those obtained by other methods, the Δ(T)′S, however, are not BCS-like.

Original languageEnglish
Pages (from-to)1531-1532
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume282-287
Issue numberPART 3
DOIs
StatePublished - Aug 1997

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