Optical cooper pair breaking spectroscopy of YBa2Cu2.8Zn0.2O7-δ thin films

Y. G. Zhao*, Tom Wu, S. B. Ogale, Eric Li, R. P. Sharma, T. Venkatesan, J. J. Li, W. L. Cao, C. H. Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, the photon-energy dependence of the optical Cooper pair breaking rate (CPBR) was studied for YBa2Cu2.8Zn0.2O7-δ (YBCZO) thin films, and was compared to that in YBCO. In YBCZO the CPBR also shows strong photon-energy dependence, similar to that in YBCO, but with a change in the position and shape of the absorption feature. The results were discussed in terms of the resonance of Cooper pair breaking and the involvement of the insulating stripes. This study favours a physical scenario based on electronic phase separation in high-Tc superconductivity.

Original languageEnglish (US)
Pages (from-to)468-471
Number of pages4
JournalSuperconductor Science and Technology
Volume15
Issue number3
DOIs
StatePublished - Mar 2002
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Materials Chemistry
  • Electrical and Electronic Engineering

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