Zero bias conductance peak enhancement in Bi2Sr2CaCu2O8/Pb tunneling junctions

Saion Sinha; K. W. Ng

doi:10.1006/spmi.1999.0721

Zero bias conductance peak enhancement in Bi₂Sr₂CaCu₂O₈/Pb tunneling junctions

Saion Sinha, K. W. Ng

Research output: Contribution to journal › Article › peer-review

Abstract

Recently, there has been tremendous interest on a tunneling feature called zero bias conductance peak (ZBCP) commonly found in high T_c superconductor tunnel junctions. The interest stemmed from the feature's root in the d-wave symmetry of high T_c superconductors. In this paper we will review results of our study on ZBCP within a Pb/Bi₂Sr₂CaCu₂O₈ (BSCCO) tunneling junction. This allows us to investigate the intricate interactions between s- and d-wave superconductivity. The ZBCP indeed demonstrates interesting properties when Pb becomes superconducting. We attribute these results to the suppression of the d-wave phase on the surface of BSCCO by the s-wave superconductivity from Pb through a proximity effect. We will also report some recent results on the magnetic field dependence of the ZBCP.

Original language	English
Pages (from-to)	1055-1066
Number of pages	12
Journal	Superlattices and Microstructures
Volume	25
Issue number	5
DOIs	https://doi.org/10.1006/spmi.1999.0721
State	Published - May 1999

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.

Funding

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.

Funders	Funder number
National Science Foundation Arctic Social Science Program	DMR 9623842
National Science Foundation Arctic Social Science Program

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1006/spmi.1999.0721

Cite this

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title = "Zero bias conductance peak enhancement in Bi2Sr2CaCu2O8/Pb tunneling junctions",

abstract = "Recently, there has been tremendous interest on a tunneling feature called zero bias conductance peak (ZBCP) commonly found in high Tc superconductor tunnel junctions. The interest stemmed from the feature's root in the d-wave symmetry of high Tc superconductors. In this paper we will review results of our study on ZBCP within a Pb/Bi2Sr2CaCu2O8 (BSCCO) tunneling junction. This allows us to investigate the intricate interactions between s- and d-wave superconductivity. The ZBCP indeed demonstrates interesting properties when Pb becomes superconducting. We attribute these results to the suppression of the d-wave phase on the surface of BSCCO by the s-wave superconductivity from Pb through a proximity effect. We will also report some recent results on the magnetic field dependence of the ZBCP.",

author = "Saion Sinha and Ng, \{K. W.\}",

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.",

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AU - Ng, K. W.

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