U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Engineering of Self-Assembled Domain Architectures With Ultra-High Piezoelectric Response in Epitaxial Ferroelectric Films

Published

Author(s)

J.H. Yang, Julia Slutsker, Igor Levin, D H. Kim, Chang-Beom Eom, R Ramesh, Alexander L. Roytburd

Abstract

Non-180 domain wall movement, which makes a large contribution to the piezoelectric response of ferroelectric bulk materials, were found to be much more difficult in epitaxial films, because of substrate clamping and inter-domain pinning. Through theoretical calculations and experimental studies we show that by choosing the film composition on the morphortropic phase boundary, it is possible to form a mobile , 2-domain architecture in an epitaxial PbZrxTi1-xO3 film with a (101) orientation. Transmission electron microscopy, X-ray diffraction analysis, and atomic force microscopy revealed that the (101) films feature a self-assembled polydomain structure, consisting of two domain sets of a tetragonal phase. Experiment results on the (101) films exhibits a reversible longitudinal strain as high as 0.35% under applied ac electric fields of 30kV/cm, corresponding to an effective piezoelectric coefficient on the order of 1,000 pm/V. This result suggests an optimized design of ferroelectric thin film heterostructures for better electromechanical performance.
Citation
Advanced Functional Materials
Pub Type
Journals

Keywords

domains, piezoelectric, self-assembled, thin films
Ceramics and Biomaterials

Citation

Yang, J. , Slutsker, J. , Levin, I. , Kim, D. , Eom, C. , Ramesh, R. and Roytburd, A. (2021), Engineering of Self-Assembled Domain Architectures With Ultra-High Piezoelectric Response in Epitaxial Ferroelectric Films, Advanced Functional Materials (Accessed September 16, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created October 12, 2021