Source abstract
Abstract
In Ba0.6Sr0.4TiO3 (BSTO)‐based epitaxial nanocomposite films increased P r values are demonstrated by up to a factor of 3 compared to standard BSTO films. A strongly reduced temperature coefficient of polarization retention is also obtained, i.e., 0.07% °C−1 compared to 0.24% °C−1. Piezopoling with only marginal leakage current is also achieved up to 200 °C, the highest temperature studied. The origin of the improved performance is the incorporation of Sm2O3 nanopillars in the films which acted as stiff vertical nanoscaffolds, inducing a strong tetragonal distortion in the BSTO (up to 1.033(7) in terms of the out‐of‐plane/in‐plane lattice dimensions). The films have comparable performance to industry‐standard Pb(Zr,Ti)O3 films, at the same time as being Pb‐free.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Dielectric materials and actuators
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science and Metallurgy University of Cambridge 27 Charles Baggage Street Cambridge CB3 0FS UK
School of Fundamental Science Universiti Malaysia Terengganu Kuala Terengganu 21030 Malaysia
Department of Electrical and Computer Engineering Texas A&M University College Station TX 77843 USA
Materials Science and Engineering Program Texas A&M University College Station TX 77843 USA
School of Materials Engineering Purdue University West Lafayette IN 47907 USA
Funding
European Research Council · National Science Foundation · Engineering and Physical Sciences Research Council
References (39)
Show source-provided references
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