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Title: Local probing of ferroelectric and ferroelastic switching through stress-mediated piezoelectric spectroscopy

The role of local strains is fundamental to the large effective piezoelectric and ferroelectric response of thin films. Therefore a method to investigate local strain-induced phenomena is imperative. Here, pressure induced domain reorganization is reported in lead zirconate titanate films with composition near the morphotropic phase boundary. An approach is thus demonstrated to simultaneously study the role of applied mechanical pressure on multiple local properties of the film. In particular, the modification of hysteresis loops collected at different tip pressures is consistent with first mostly ferroelastic and then ferroelectric dominated reorientation of domains under increasing applied pressure. The pressure induced domain writing is also investigated through phase field simulations where the applied pressure is generally found to increase the in-plane polarization of the domains with respect to the out-of-plane component, corroborating the experimental observations. The approach developed here has the potential to explore other hysteretic phenomena and phase transitions in a spatially resolved manner with varying local pressure.
 [1] ;  [2] ;  [3] ;  [4] ;  [3] ;  [1] ;  [2] ;  [2]
  1. Queen’s Univ. Belfast, Belfast (United Kingdom)
  2. Georgia Institute of Technology, Atlanta, GA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Pennsylvania State Univ., University Park, PA (United States)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Advanced Materials Interfaces
Additional Journal Information:
Journal Volume: 2; Journal Issue: 6; Journal ID: ISSN 2196-7350
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
36 MATERIALS SCIENCE; ferroelastics; ferroelectrics; lead zirconate titanate; piezoresponse force microscopy; piezoelectric spectroscopy
OSTI Identifier: