Periodicity dependence of the built-in electric field in (Ba0.7Ca0.3)TiO3/Ba(Zr0.2Ti0.8)O3 ferroelectric superlattices

Lin, Qianru, Wang, Danyang, Chen, Zhigang, Liu, Wenfeng, Lim, Sean and Li, Sean (2015) Periodicity dependence of the built-in electric field in (Ba0.7Ca0.3)TiO3/Ba(Zr0.2Ti0.8)O3 ferroelectric superlattices. ACS Applied Materials and Interfaces, 7 47: 26301-26306. doi:10.1021/acsami.5b08943


Author Lin, Qianru
Wang, Danyang
Chen, Zhigang
Liu, Wenfeng
Lim, Sean
Li, Sean
Title Periodicity dependence of the built-in electric field in (Ba0.7Ca0.3)TiO3/Ba(Zr0.2Ti0.8)O3 ferroelectric superlattices
Formatted title
Periodicity dependence of the built-in electric field in (Ba0.7Ca0.3)TiO3/Ba(Zr0.2Ti0.8)O3 ferroelectric superlattices
Journal name ACS Applied Materials and Interfaces   Check publisher's open access policy
ISSN 1944-8252
1944-8244
Publication date 2015-12-02
Sub-type Article (original research)
DOI 10.1021/acsami.5b08943
Open Access Status Not Open Access
Volume 7
Issue 47
Start page 26301
End page 26306
Total pages 6
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Formatted abstract
Symmetric ferroelectric superlattices consisting of (Ba0.7Ca0.3)TiO3 (BCT) and Ba(Zr0.2Ti0.8)O3 (BZT) layers were successfully grown on La0.7Sr0.3MnO3 electroded (001)-oriented SrTiO3 substrates by laser molecular beam epitaxy. With the monitor of reflective high-energy electron diffraction, the growth mode and rate were precisely controlled to realize the desired superlattice periodicity as confirmed by both X-ray diffraction and transmission electron microscopy results. The microscopic piezoelectric response and macroscopic ferroelectric properties were investigated as a function of periodicity of the BCTm/BZTm (m = 3, 5, 10, and 15 unit cells) superlattices. The existence of a built-in electric field was confirmed in all the superlattices and its strength was highly dependent on the periodicity. The excellent tunability of built-in electric field opens a path for designing microelectronic devices with various functionalities based on BCTm/BZTm superlattices.
Keyword Built-in electric field
Ferroelectric superlattice thin films
Laser molecular beam epitaxy
Lead-free
Periodicity dependence
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2016 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 15 Dec 2015, 10:19:37 EST by System User on behalf of Scholarly Communication and Digitisation Service