High-resistivity SNS josephson junctions scribed in YBazCusOy.g by electron irradiation

B. A. Davidson; B. Hinaus; M. Rzchowski; K. Siangchaew; M. Libéra; J. E. Nordman

doi:10.1109/77.621751

High-resistivity SNS josephson junctions scribed in YBazCusOy.g by electron irradiation

B. A. Davidson
, B. Hinaus
, M. Rzchowski
, K. Siangchaew
, M. Libéra
, J. E. Nordman

Department of Chemical Engineering and Materials Science

University of Wisconsin-Madison

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

5 Scopus citations

Abstract

We demonstrate that the behavior of Josephson junctions scribed in YBa₂Cu₃O_{7_5} (YBCO) with a high-brightness electron source are described well by conventional superconductornormal-superconductor (SNS) theory. These junction characteristics include a fully normal interlayer (7dv=0) intermediate length ( L/n(rc)=8-10) and a reduced order parameter at the SN interface. Consistent application of this model of diffusive transport across a metallic interlayer in the dirty limit requires a reduced carrier concentration in the irradiated region a junction length L~5 nm and a normal resistivity near the metallic limit. lcRn products higher than 3 mV at low temperatures are observed.

Original language	English
Pages (from-to)	2518-2521
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	7
Issue number	2 PART 3
DOIs	https://doi.org/10.1109/77.621751
State	Published - 1997

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abstract = "We demonstrate that the behavior of Josephson junctions scribed in YBa2Cu3O7\_5 (YBCO) with a high-brightness electron source are described well by conventional superconductornormal-superconductor (SNS) theory. These junction characteristics include a fully normal interlayer (7dv=0) intermediate length ( L/n(rc)=8-10) and a reduced order parameter at the SN interface. Consistent application of this model of diffusive transport across a metallic interlayer in the dirty limit requires a reduced carrier concentration in the irradiated region a junction length L\textasciitilde{}5 nm and a normal resistivity near the metallic limit. lcRn products higher than 3 mV at low temperatures are observed.",

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T1 - High-resistivity SNS josephson junctions scribed in YBazCusOy.g by electron irradiation

AU - Davidson, B. A.

AU - Hinaus, B.

AU - Rzchowski, M.

AU - Siangchaew, K.

AU - Libéra, M.

AU - Nordman, J. E.

PY - 1997

Y1 - 1997

N2 - We demonstrate that the behavior of Josephson junctions scribed in YBa2Cu3O7_5 (YBCO) with a high-brightness electron source are described well by conventional superconductornormal-superconductor (SNS) theory. These junction characteristics include a fully normal interlayer (7dv=0) intermediate length ( L/n(rc)=8-10) and a reduced order parameter at the SN interface. Consistent application of this model of diffusive transport across a metallic interlayer in the dirty limit requires a reduced carrier concentration in the irradiated region a junction length L~5 nm and a normal resistivity near the metallic limit. lcRn products higher than 3 mV at low temperatures are observed.

AB - We demonstrate that the behavior of Josephson junctions scribed in YBa2Cu3O7_5 (YBCO) with a high-brightness electron source are described well by conventional superconductornormal-superconductor (SNS) theory. These junction characteristics include a fully normal interlayer (7dv=0) intermediate length ( L/n(rc)=8-10) and a reduced order parameter at the SN interface. Consistent application of this model of diffusive transport across a metallic interlayer in the dirty limit requires a reduced carrier concentration in the irradiated region a junction length L~5 nm and a normal resistivity near the metallic limit. lcRn products higher than 3 mV at low temperatures are observed.

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JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2 PART 3

ER -

High-resistivity SNS josephson junctions scribed in YBazCusOy.g by electron irradiation

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