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

Producción científica: Article › revisión exhaustiva

Resumen

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.

Idioma original	English
Páginas (desde-hasta)	1055-1066
Número de páginas	12
Publicación	Superlattices and Microstructures
Volumen	25
N.º	5
DOI	https://doi.org/10.1006/spmi.1999.0721
Estado	Published - may 1999

Nota bibliográfica

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.

Financiación

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.

Financiadores	Número del financiador
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

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10.1006/spmi.1999.0721

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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.",

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