The Growth and Characterization of Ferrite-High Temperature Superconductor Thin Films for Microwave Devices

Abstract

In an effort to integrate superconducting, conducting, ferrite and insulating thin films to produce microwave devices such as phase shifters and circulators, thin films (single and bi-layer) of ferrites (Strontium Hexaferrite, Fe3O4), superconductors (YBa2Cu3O7-x), buffer layers (MgO), and ground planes (SrRuO3, CaRuO3) were grown by the technique of laser ablation on semiconducting (Si, GaAs), ferrite (YIG), and insulating (LaAlO3) substrates. All films grown were epitaxial as shown by 4 circle x-ray diffractometry. The magnetic properties of the films were characterized by magnetometry and by FMR. 4 wire resistance measurements were used to characterize the superconducting properties.

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Document Details

Document Type
Technical Report
Publication Date
Dec 25, 2000
Accession Number
ADA393453

Entities

People

  • Robin J. Kennedy

Organizations

  • Florida A&M University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Crystal Growth
  • Crystal Lattices
  • Crystals
  • Epitaxial Growth
  • Films
  • High Temperature
  • High Temperature Superconductors
  • Magnetic Fields
  • Magnetic Materials
  • Magnetic Properties
  • Materials
  • Measurement
  • Resistance
  • Semiconductor Manufacturing
  • Thin Films
  • Transition Temperature
  • X Rays

Fields of Study

  • Materials science
  • Physics

Readers

  • Microwave Engineering.
  • Superconducting Magnet Technology
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Microelectronics
  • Microelectronics - Graphene