Compositional Dependence of Electromechanical Behavior of Ba,Zr-Codoped Sodium Bismuth Titanate

Abstract

BNBZT systems offer rich possibilities for lead-free ferroelectrics with high electromechanical properties. The peak of electromechanical response has been found at the composition z2b7. Compositional dependence of ferroelectric phase stability in the BNBZT system has been mapped by means of a free energy expansion in terms of polarization with coefficients obtained by fitting of the predicted to the observed hysteresis loops. Nanodomain relaxation as a mechanism of frequency dependent electromechanical response of BNBZT has been supported by microscopic observations.

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Document Details

Document Type
Technical Report
Publication Date
Jun 17, 2003
Accession Number
ADA429649

Entities

People

  • Andrey N. Soukhojak
  • Yet-Ming Chiang

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Bismuth
  • Bismuth Titanate
  • Chemical Compounds
  • Crystal Structure
  • Crystals
  • Elements
  • Energy
  • Free Energy
  • Materials
  • Nanotechnology
  • Neutron Diffraction
  • Phase
  • Phase Diagrams
  • Polycrystals
  • Single Crystals
  • Titanates

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Microelectronics - Microelectromechanical Systems