High T sub c Superconductor/Ferroelectric Heterostructures.

Abstract

Thin films of the ferroelectric perovskite, Ba(x) Sr(1-x) TiO3 (BST), were deposited on superconducting (100)YBa2Cu3O(x)(YBCO)/ (100)Yttria-stabilized zirconia(YSZ) substrates and (100)Si by ion-beam sputtering. Microstructural and compositional features of the ceramic bilayer were assessed by a combination of x-ray diffraction (XRD) and scanning electron microscopy. The films were smooth and featureless, and energy dispersive x-ray spectroscopy (EDX) data indicated that film composition closely matched target composition. XRD analysis showed that films deposited on YBCO substrates were highly c-axis textured, while the films deposited on (100)Si did not exhibit any preferred growth morphology. The superconducting properties of the YBCO substrate layer were maintained throughout the processing stages and, as such, it was demonstrated that ion beam sputtering is a viable method for the deposition of Ferroelectric/YBCO heterostructures. (jg)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA291016

Entities

People

  • Daniel F. Ryder Jr.

Organizations

  • SRI International

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Chemical Vapor Deposition
  • Chemistry
  • Command And Control
  • Computer Science
  • Electrical Properties
  • Films
  • Heterojunctions
  • Ion Beams
  • Ions
  • Materials
  • Spectroscopy
  • Sputtering
  • Substrates
  • Thin Films
  • Vapor Deposition

Fields of Study

  • Physics

Readers

  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene