Improved jc of bilayer YBa2Cu3O7.0 thin film structures

J. P. Zhou; C. E. Jones; J. T. McDevitt

doi:10.1109/77.784856

Improved jc of bilayer YBa₂Cu₃O_7.0 thin film structures

J. P. Zhou, C. E. Jones, J. T. McDevitt

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

Abstract

Critical-current (JJ measurements for YBaO,.. (YBCO), Gd_0.6Ca₀₄Ba₁₆La,₄Cu,O,., (TXGBCO) and TX-GBCO/YBCO bilayers were performed with transport measurements at different applied magnetic fields. The film samples were prepared by pulsed laser deposition and patterned as microbridges. The highest J, (1.5 x 10' A/cm2) at 75 K in 5 Tesla (Hllab) was observed for TX-GBCO/YBCO bilayers, which showed a 40 % increase in Jc over YBCO under the same conditions. The biiayer samples possess a Tc at 90 K and display superconducting properties similar to YBCO. A possible mechanisms for the high Jc of biiayer YBCO films is discussed. Development of these biiayer and multilayer structures represents a promising new direction to improve the superconducting properties of YBCO since the TX-GBCO layer provide both protection against corrosion and a significant improvement in Je.

Original language	English (US)
Pages (from-to)	2002-2005
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 2
DOIs	https://doi.org/10.1109/77.784856
State	Published - 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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@article{80904c303ba2459d9138693572a23971,

title = "Improved jc of bilayer YBa2Cu3O7.0 thin film structures",

abstract = "Critical-current (JJ measurements for YBaO,.. (YBCO), Gd0.6Ca04Ba16La,4Cu,O,., (TXGBCO) and TX-GBCO/YBCO bilayers were performed with transport measurements at different applied magnetic fields. The film samples were prepared by pulsed laser deposition and patterned as microbridges. The highest J, (1.5 x 10' A/cm2) at 75 K in 5 Tesla (Hllab) was observed for TX-GBCO/YBCO bilayers, which showed a 40 % increase in Jc over YBCO under the same conditions. The biiayer samples possess a Tc at 90 K and display superconducting properties similar to YBCO. A possible mechanisms for the high Jc of biiayer YBCO films is discussed. Development of these biiayer and multilayer structures represents a promising new direction to improve the superconducting properties of YBCO since the TX-GBCO layer provide both protection against corrosion and a significant improvement in Je.",

author = "Zhou, {J. P.} and Jones, {C. E.} and McDevitt, {J. T.}",

note = "Funding Information: This research was supported by the Office of Naval Research and Institute of Applied Technology.",

year = "1999",

doi = "10.1109/77.784856",

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volume = "9",

pages = "2002--2005",

journal = "IEEE Transactions on Applied Superconductivity",

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T1 - Improved jc of bilayer YBa2Cu3O7.0 thin film structures

AU - Zhou, J. P.

AU - Jones, C. E.

AU - McDevitt, J. T.

N1 - Funding Information: This research was supported by the Office of Naval Research and Institute of Applied Technology.

PY - 1999

Y1 - 1999

N2 - Critical-current (JJ measurements for YBaO,.. (YBCO), Gd0.6Ca04Ba16La,4Cu,O,., (TXGBCO) and TX-GBCO/YBCO bilayers were performed with transport measurements at different applied magnetic fields. The film samples were prepared by pulsed laser deposition and patterned as microbridges. The highest J, (1.5 x 10' A/cm2) at 75 K in 5 Tesla (Hllab) was observed for TX-GBCO/YBCO bilayers, which showed a 40 % increase in Jc over YBCO under the same conditions. The biiayer samples possess a Tc at 90 K and display superconducting properties similar to YBCO. A possible mechanisms for the high Jc of biiayer YBCO films is discussed. Development of these biiayer and multilayer structures represents a promising new direction to improve the superconducting properties of YBCO since the TX-GBCO layer provide both protection against corrosion and a significant improvement in Je.

AB - Critical-current (JJ measurements for YBaO,.. (YBCO), Gd0.6Ca04Ba16La,4Cu,O,., (TXGBCO) and TX-GBCO/YBCO bilayers were performed with transport measurements at different applied magnetic fields. The film samples were prepared by pulsed laser deposition and patterned as microbridges. The highest J, (1.5 x 10' A/cm2) at 75 K in 5 Tesla (Hllab) was observed for TX-GBCO/YBCO bilayers, which showed a 40 % increase in Jc over YBCO under the same conditions. The biiayer samples possess a Tc at 90 K and display superconducting properties similar to YBCO. A possible mechanisms for the high Jc of biiayer YBCO films is discussed. Development of these biiayer and multilayer structures represents a promising new direction to improve the superconducting properties of YBCO since the TX-GBCO layer provide both protection against corrosion and a significant improvement in Je.

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JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2 PART 2

ER -

Improved jc of bilayer YBa₂Cu₃O_7.0 thin film structures

Abstract

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