Zero bias conductance peak enhancement in Bi2Sr2CaCu2O8/Pb tunneling junctions

Saion Sinha, K. W. Ng

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

We found strong zero bias conductance peak enhancement in Bi2Sr2CaCu2O8/Pb by tunneling in the ab-plane direction. Our results are consistent with the recent studies on Andreev reflection between a d-wave superconductor and normal metal. We have also observed exotic behaviors of the conductance peak if the counter electrode is a conventional superconductor. If these characteristics are better understood, they can be very useful in studying the pairing properties in high Tc superconductors.

Original languageEnglish
Pages (from-to)1296-1299
Number of pages4
JournalPhysical Review Letters
Volume80
Issue number6
DOIs
StatePublished - 1998

Bibliographical note

Funding Information:
Acknowledgements—We would like to thank P. Bagwell, S. Datta, A. Gupta, and M. Samanta for many helpful and stimulating discussions. This work is supported by a grant from the National Science Foundation, DMR 9623842.

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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