Improved jc of bilayer YBa2Cu3O7.0 thin film structures

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

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)2002-2005
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume9
Issue number2 PART 2
DOIs
StatePublished - 1999

Fingerprint

Thin films
Critical currents
Corrosion protection
Electric current measurement
Pulsed laser deposition
thin films
laminates
pulsed laser deposition
critical current
corrosion
Multilayers
Magnetic fields
magnetic fields
Direction compound

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Improved jc of bilayer YBa2Cu3O7.0 thin film structures. / Zhou, J. P.; Jones, C. E.; McDevitt, John.

In: IEEE Transactions on Applied Superconductivity, Vol. 9, No. 2 PART 2, 1999, p. 2002-2005.

Research output: Contribution to journalArticle

Zhou, J. P. ; Jones, C. E. ; McDevitt, John. / Improved jc of bilayer YBa2Cu3O7.0 thin film structures. In: IEEE Transactions on Applied Superconductivity. 1999 ; Vol. 9, No. 2 PART 2. pp. 2002-2005.
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