Conformal Miniaturization of Domains with Low Domain-Wall Energy: Monoclinic Ferroelectric States near the Morphotropic Phase Boundaries

Y. M. Jin, Y. U. Wang, A. G. Khachaturyan, J. F. Li, and D. Viehland
Phys. Rev. Lett. 91, 197601 – Published 6 November 2003

Abstract

A theory is developed for intermediate monoclinic (FEm) phases near morphotropic phase boundaries in ferroelectrics of complex oxides. It is based on the conformal miniaturization of stress-accommodating tetragonal domains under the condition of low domain-wall energy density. The microdomain-averaged lattice parameters are determined and attributed to the parameters of an adaptive monoclinic phase. The theory is applied to the temperature, electric field, and compositional dependent FEm lattice parameters. The predictions of the theory are rigidly obeyed over the entire FEm stability range.

  • Figure
  • Figure
  • Figure
  • Received 24 April 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.197601

©2003 American Physical Society

Authors & Affiliations

Y. M. Jin, Y. U. Wang, and A. G. Khachaturyan

  • Department of Ceramic and Materials Engineering, Rutgers University, Piscataway, New Jersey 08854, USA

J. F. Li and D. Viehland

  • Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 91, Iss. 19 — 7 November 2003

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×