SM and ND Substiturions in YBCO Films Produced through Metal Organic Deposition (Postprint)

Abstract

Epitaxial YBa2Cu3O7-x (YBCO) films were produced on non-buffered (100) single crystal LaAlO3 using the metal organic deposition (MOD) method with fluorinated metal acetates. In an effort to enhance the in-field performance of the films, Sm and Nd acetates were fractionally substituted for Y acetate in a series of precursor solutions to incorporate an array of nanoscale flux pinning centers in the post-annealed films. From measurements taken in the non-optimized films a 50%-150% improvement in critical current density at 77K in fields up to IT were found for films with a 1/3 substitution of the Rare Earth elements, with farther improvements at 40K. Furthermore, a study of the microstructure of the films by scanning electron microscopy (SEM) reveals the presence of nanoparticles on the surfaces of the films.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2012
Accession Number
ADA560860

Entities

People

  • And P.n. Barnes P. Klenk
  • B. C. Harrison
  • Chakrapani V. Varanasi
  • H. Fang
  • J. Carpenter

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Current Density
  • Electron Microscopy
  • Elements
  • Engineering
  • Materials
  • Metals
  • Microscopes
  • Microscopy
  • Microstructure
  • Military Research
  • Nanoparticles
  • Phase Separation
  • Scanning Electron Microscopy
  • Superconductors
  • X Rays

Fields of Study

  • Physics

Readers

  • Analytical Chemistry
  • Superconducting Magnet Technology
  • Thin Film Deposition Science.

Technology Areas

  • Biotechnology
  • Microelectronics
  • Microelectronics - Graphene