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Title: Three-State Ferroelastic Switching and Large Electromechanical Responses in PbTiO 3 Thin Films

Abstract

Leveraging competition between energetically degenerate states to achieve large field-driven responses is a hallmark of functional materials, but routes to such competition are limited. Here, a new route to such effects involving domain-structure competition is demonstrated, which arises from straininduced spontaneous partitioning of PbTiO 3 thin films into nearly energetically degenerate, hierarchical domain architectures of coexisting c/a and a 1/a 2 domain structures. Using band-excitation piezoresponse force microscopy, this study manipulates and acoustically detects a facile interconversion of different ferroelastic variants via a two-step, three-state ferroelastic switching process (out-of-plane polarized c+ → in-plane polarized a → out-of-plane polarized c- state), which is concomitant with large nonvolatile electromechanical strains (≈1.25%) and tunability of the local piezoresponse and elastic modulus (>23%). It is further demonstrated that deterministic, nonvolatile writing/erasure of large-area patterns of this electromechanical response is possible, thus showing a new pathway to improved function and properties.

Authors:
ORCiD logo [1];  [1];  [1];  [2];  [2];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [2];  [2];  [1];  [2];  [3]
  1. Univ. of California, Berkeley, CA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1399919
DOE Contract Number:
AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Advanced Materials; Journal Volume: 29; Journal Issue: 37
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Damodaran, Anoop R., Pandya, Shishir, Agar, Josh C., Cao, Ye, Vasudevan, Rama K., Xu, Ruijuan, Saremi, Sahar, Li, Qian, Kim, Jieun, McCarter, Margaret R., Dedon, Liv R., Angsten, Tom, Balke, Nina, Jesse, Stephen, Asta, Mark, Kalinin, Sergei V., and Martin, Lane W.. Three-State Ferroelastic Switching and Large Electromechanical Responses in PbTiO 3 Thin Films. United States: N. p., 2017. Web. doi:10.1002/adma.201702069.
Damodaran, Anoop R., Pandya, Shishir, Agar, Josh C., Cao, Ye, Vasudevan, Rama K., Xu, Ruijuan, Saremi, Sahar, Li, Qian, Kim, Jieun, McCarter, Margaret R., Dedon, Liv R., Angsten, Tom, Balke, Nina, Jesse, Stephen, Asta, Mark, Kalinin, Sergei V., & Martin, Lane W.. Three-State Ferroelastic Switching and Large Electromechanical Responses in PbTiO 3 Thin Films. United States. doi:10.1002/adma.201702069.
Damodaran, Anoop R., Pandya, Shishir, Agar, Josh C., Cao, Ye, Vasudevan, Rama K., Xu, Ruijuan, Saremi, Sahar, Li, Qian, Kim, Jieun, McCarter, Margaret R., Dedon, Liv R., Angsten, Tom, Balke, Nina, Jesse, Stephen, Asta, Mark, Kalinin, Sergei V., and Martin, Lane W.. Mon . "Three-State Ferroelastic Switching and Large Electromechanical Responses in PbTiO 3 Thin Films". United States. doi:10.1002/adma.201702069.
@article{osti_1399919,
title = {Three-State Ferroelastic Switching and Large Electromechanical Responses in PbTiO 3 Thin Films},
author = {Damodaran, Anoop R. and Pandya, Shishir and Agar, Josh C. and Cao, Ye and Vasudevan, Rama K. and Xu, Ruijuan and Saremi, Sahar and Li, Qian and Kim, Jieun and McCarter, Margaret R. and Dedon, Liv R. and Angsten, Tom and Balke, Nina and Jesse, Stephen and Asta, Mark and Kalinin, Sergei V. and Martin, Lane W.},
abstractNote = {Leveraging competition between energetically degenerate states to achieve large field-driven responses is a hallmark of functional materials, but routes to such competition are limited. Here, a new route to such effects involving domain-structure competition is demonstrated, which arises from straininduced spontaneous partitioning of PbTiO3 thin films into nearly energetically degenerate, hierarchical domain architectures of coexisting c/a and a1/a2 domain structures. Using band-excitation piezoresponse force microscopy, this study manipulates and acoustically detects a facile interconversion of different ferroelastic variants via a two-step, three-state ferroelastic switching process (out-of-plane polarized c+ → in-plane polarized a → out-of-plane polarized c- state), which is concomitant with large nonvolatile electromechanical strains (≈1.25%) and tunability of the local piezoresponse and elastic modulus (>23%). It is further demonstrated that deterministic, nonvolatile writing/erasure of large-area patterns of this electromechanical response is possible, thus showing a new pathway to improved function and properties.},
doi = {10.1002/adma.201702069},
journal = {Advanced Materials},
number = 37,
volume = 29,
place = {United States},
year = {Mon Jul 31 00:00:00 EDT 2017},
month = {Mon Jul 31 00:00:00 EDT 2017}
}