Thick YBa2Cu3O7-x BaSnO3 Films with Enhanced Critical Current Density at High Magnetic Fields

Abstract

The thickness dependence was studied for the critical current density (Jc) of YBa2Cu3O7-x (YBCO) + BaSnO3 (BSO) nanocomposite films. These films showed a significantly reduced decline of the Jc with thickness, especially at high magnetic fields. For example, a 2-micron-thick YBCO+BSO film had a Jc ~3x105 A/cm2 at 5 T as compared to a typical Jc of 2.4x103 A/cm2 at 5 T for a 300-nm-thick YBCO film. The thick YBCO+BSO films maintained high Tc (>88 K) and had a high density of continuous BSO nanocolumns that likely contributed for the observed Jc enhancements.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2008
Accession Number
ADA489066

Entities

People

  • Chakrapani V. Varanasi
  • Hao Wang
  • Jeong Hyo Lee
  • John H. Burke
  • Paul N. Barnes

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Composite Materials
  • Current Density
  • Electron Microscopes
  • Films
  • High Density
  • Magnetic Fields
  • Magnetic Resonance
  • Materials
  • Materials Laboratories
  • Military Research
  • Nanocomposites
  • Thick Films
  • Thickness
  • Thin Films

Fields of Study

  • Physics

Readers

  • Superconducting Magnet Technology

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition