Preparation of Layered Sr2CuO3+delta by Pulsed Laser Deposition: Rational Synthesis and Doping of a Metastable Copper Oxide Material

Abstract

Herein we describe the first synthesis of the layered copper oxide material Sr2Cu03+delta carried out under low-pressure and low-temperature conditions. Reaction under these mild conditions was achieved using the pulsed laser ablation and deposition (PLD) technique,l.2 Structural analyses demonstrate that Sr2CuO3+delta prepared by PLD adopts a layered tetragonal structure with a repeat unit consisting of a CuO2 plane and two SrO(delta) layers. Investigations of the growth mechanism show that this layered copper oxide phase is a kinetic product in contrast to the thermodynamic one typically produced in solid state reactions. We have exploited this kinetic growth mode to prepare Sr2-xMxCuO3+delta solids that have systematic variations in oxygen and cation stoichiometry.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1994
Accession Number
ADA640046

Entities

People

  • Alfredo M. Morales
  • Charles M. Lieber
  • Peidong Yang

Organizations

  • Harvard University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Chemical Compounds
  • Chemistry
  • Copper
  • Copper Oxides
  • Diffraction
  • Films
  • High Pressure
  • High Temperature
  • Lasers
  • Low Temperature
  • Materials
  • Materials Processing
  • Materials Science
  • Metals
  • Pulsed Lasers
  • Solid State Chemistry

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition