Tunneling spectroscopy of superconducting Y1-xPrxBa2Cu3O7thin films

M. Covington; F. Xu; C. A. Mirkin; W. L. Feldmann; Laura Greene

doi:10.1007/BF02562785

Tunneling spectroscopy of superconducting Y_1-xPr_xBa₂Cu₃O₇thin films

M. Covington, F. Xu, C. A. Mirkin, W. L. Feldmann, Laura Greene

Physics

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

Abstract

A systematic study of the conductance of Y_1-xPr_xBa₂Cu₃O₇Pb planar tunnel junctions as a function of Pr concentration, x, and crystallographic orientation is presented. For fixed Pr concentration, the tunneling conductance is the same when tunneling into (100)-, (110)-, and (103)-oriented films, but qualitatively different than tunneling into (001)-oriented films. In addition, the gap-like feature energy (~2k_BT_c) scales with T_c but only when tunneling in the ab-plane direction. An ongoing experiment characterizing a novel tunnel junction fabrication technique using self-assembled monolayers as insulating tunnel barriers is also discussed.

Original language	English (US)
Pages (from-to)	1341-1342
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 3
DOIs	https://doi.org/10.1007/BF02562785
State	Published - 1996

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1007/BF02562785

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Cite this

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title = "Tunneling spectroscopy of superconducting Y1-xPrxBa2Cu3O7thin films",

abstract = "A systematic study of the conductance of Y1-xPrxBa2Cu3O7Pb planar tunnel junctions as a function of Pr concentration, x, and crystallographic orientation is presented. For fixed Pr concentration, the tunneling conductance is the same when tunneling into (100)-, (110)-, and (103)-oriented films, but qualitatively different than tunneling into (001)-oriented films. In addition, the gap-like feature energy (~2kBTc) scales with Tc but only when tunneling in the ab-plane direction. An ongoing experiment characterizing a novel tunnel junction fabrication technique using self-assembled monolayers as insulating tunnel barriers is also discussed.",

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AU - Xu, F.

AU - Mirkin, C. A.

AU - Feldmann, W. L.

AU - Greene, Laura

PY - 1996

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AB - A systematic study of the conductance of Y1-xPrxBa2Cu3O7Pb planar tunnel junctions as a function of Pr concentration, x, and crystallographic orientation is presented. For fixed Pr concentration, the tunneling conductance is the same when tunneling into (100)-, (110)-, and (103)-oriented films, but qualitatively different than tunneling into (001)-oriented films. In addition, the gap-like feature energy (~2kBTc) scales with Tc but only when tunneling in the ab-plane direction. An ongoing experiment characterizing a novel tunnel junction fabrication technique using self-assembled monolayers as insulating tunnel barriers is also discussed.

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