Synthesis of Multifunctional Materials

Abstract

Single-crystal PbTiO3 layers were grown on (001) SrTiO3 substrates by molecular beam epitaxy using hydrogen peroxide as an oxidant. Phase composition and structural properties of the films were examined as a function of growth parameters. It was found that single-phase PbTiO3 films grew epitaxially at substrate temperatures of 600 degrees C and higher, whereas layers grown at lower temperature contained PbO inclusions. Growth of Pb(ZrTi)O3 (PZT) films by molecular beam epitaxy was demonstrated for the first time. Single-crystal, single-phase PZT films were grown on (001) SrTiO3 substrates at a growth temperature of 600 degrees C. In situ monitoring of the growth process by reflection high-energy electron diffraction revealed two dimensional growth mode for the end compounds of the PZT system, PbTiO3 and PbZrO3, and three-dimensional growth mode for PZT films of intermediate compositions.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2006
Accession Number
ADA459645

Entities

People

  • Hadis H. Morkoç̌

Organizations

  • Virginia Commonwealth University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Band Structures
  • Chemical Vapor Deposition
  • Crystal Structure
  • Crystals
  • Diffraction
  • Energy Bands
  • Epitaxial Growth
  • Infrared Detectors
  • Materials
  • Materials Science
  • Molecular Beam Epitaxy
  • Molecular Beams
  • Optical Properties
  • Phase Transformations
  • Single Crystals
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Materials science

Readers

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

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene