Effect of misfit strain on ferroelectric domain formation at the morphotropic phase boundary

Zhen Liu, Bin Yang, Wenwu Cao, Turab Lookman

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the morphotropic phase boundary region where tetragonal and rhombohedral phases coexist in the ferroelectric solid solution PbZr1-xTixO3(PZT), large strains can be induced at the interface due to the lattice misfit of the two structures. We show that for bulk PZT the misfit strains between tetragonal and rhombohedral phases can lead to an adaptive monoclinic structure in the morphotropic phase boundary (MPB) region, similar to the effects of misfit strains between a crystal and substrate in epitaxial ferroelectric thin films. We use Landau theory to sixth order in polarization to provide insight into factors controlling the occurrence of the monoclinic phase in the MPB region.

Original languageEnglish (US)
Article number214117
JournalPhysical Review B
Volume94
Issue number21
DOIs
StatePublished - Dec 30 2016

Fingerprint

Phase boundaries
Ferroelectric materials
Ferroelectric thin films
Solid solutions
solid solutions
occurrences
Polarization
Crystals
Substrates
polarization
thin films
crystals

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{b62d97ee7ae74ccd83fd282ae162ee32,
title = "Effect of misfit strain on ferroelectric domain formation at the morphotropic phase boundary",
abstract = "In the morphotropic phase boundary region where tetragonal and rhombohedral phases coexist in the ferroelectric solid solution PbZr1-xTixO3(PZT), large strains can be induced at the interface due to the lattice misfit of the two structures. We show that for bulk PZT the misfit strains between tetragonal and rhombohedral phases can lead to an adaptive monoclinic structure in the morphotropic phase boundary (MPB) region, similar to the effects of misfit strains between a crystal and substrate in epitaxial ferroelectric thin films. We use Landau theory to sixth order in polarization to provide insight into factors controlling the occurrence of the monoclinic phase in the MPB region.",
author = "Zhen Liu and Bin Yang and Wenwu Cao and Turab Lookman",
year = "2016",
month = "12",
day = "30",
doi = "10.1103/PhysRevB.94.214117",
language = "English (US)",
volume = "94",
journal = "Physical Review B-Condensed Matter",
issn = "2469-9950",
publisher = "American Physical Society",
number = "21",

}

Effect of misfit strain on ferroelectric domain formation at the morphotropic phase boundary. / Liu, Zhen; Yang, Bin; Cao, Wenwu; Lookman, Turab.

In: Physical Review B, Vol. 94, No. 21, 214117, 30.12.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of misfit strain on ferroelectric domain formation at the morphotropic phase boundary

AU - Liu, Zhen

AU - Yang, Bin

AU - Cao, Wenwu

AU - Lookman, Turab

PY - 2016/12/30

Y1 - 2016/12/30

N2 - In the morphotropic phase boundary region where tetragonal and rhombohedral phases coexist in the ferroelectric solid solution PbZr1-xTixO3(PZT), large strains can be induced at the interface due to the lattice misfit of the two structures. We show that for bulk PZT the misfit strains between tetragonal and rhombohedral phases can lead to an adaptive monoclinic structure in the morphotropic phase boundary (MPB) region, similar to the effects of misfit strains between a crystal and substrate in epitaxial ferroelectric thin films. We use Landau theory to sixth order in polarization to provide insight into factors controlling the occurrence of the monoclinic phase in the MPB region.

AB - In the morphotropic phase boundary region where tetragonal and rhombohedral phases coexist in the ferroelectric solid solution PbZr1-xTixO3(PZT), large strains can be induced at the interface due to the lattice misfit of the two structures. We show that for bulk PZT the misfit strains between tetragonal and rhombohedral phases can lead to an adaptive monoclinic structure in the morphotropic phase boundary (MPB) region, similar to the effects of misfit strains between a crystal and substrate in epitaxial ferroelectric thin films. We use Landau theory to sixth order in polarization to provide insight into factors controlling the occurrence of the monoclinic phase in the MPB region.

UR - http://www.scopus.com/inward/record.url?scp=85007452281&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85007452281&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.94.214117

DO - 10.1103/PhysRevB.94.214117

M3 - Article

AN - SCOPUS:85007452281

VL - 94

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 2469-9950

IS - 21

M1 - 214117

ER -