DataVXACS Applied Materials & InterfacesPaper
journal article·2024-04-03

Novel Route for Enhancing Piezoelectricity of Ferroelectric Films: Controlling Nontrivial Polarization States in Pb(Zr, Ti)O3 Monodomain Superlattice Structure

Jundong Song, Youhei Ebihara, Petr Yudin, Osami Sakata, Hitoshi Morioka, Takanori Kiguchi, Shinya Kondo, Xueyou Yuan, Soichiro Okamura, Masahito Yoshino, Takanori Nagasaki, Tomoaki Yamada

ACS Applied Materials & Interfaces· Volume 16· Issue 13
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Source abstract

Abstract

Artificial superlattice films made of Pb(Zr 0.4 Ti 0.6 )O 3 and Pb(Zr 0.6 Ti 0.4 )O 3 were investigated for their polarization states and piezoelectric properties theoretically and experimentally in this study. The developed theory predicts nontrivial polarization along neither [001] nor [111] directions in (111)-epitaxial monodomain superlattice films with uniform compressive strain. Such films were achieved via pulsed laser deposition. When the layer thickness is reduced to 3 nm, d 33 becomes 128 ± 3.8 pm/V at 100 kV/cm and 71.3 ± 2.83 pm/V at 600 kV/cm, comparable to that of (111)-oriented Pb(Zr 0.4 Ti 0.6 )O 3 or Pb(Zr 0.6 Ti 0.4 )O 3 bulks and clearly exceeding that of the typical clamped films. The measurement agrees with the theoretical analysis, which reveals that the enhanced piezoelectricity is due to rotation of the nontrivial polarization. Furthermore, the theoretical study predicts an even larger d 33 exceeding 300 pm/V for specific parameters in superlattice films with uniform tensile strain, which is promising for applications of microelectromechanical systems.
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Research context

Electronic materialsMaterials processing

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 Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

Department of Applied Physics, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan

Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, Praha 8 18221, Czech Republic

Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan

Synchrotron X-ray Group, Research Center for Advanced Measurement and Characterization, National Institute for Materials Science (NIMS), 1-1-1, Kouto, Sayo, Hyogo 679-5148, Japan

Application Department, X-ray Division, Bruker Japan K.K., Yokohama 221-0022, Japan

Magnesium Research Center, Kumamoto University, Chuo-ku, Kurokami, Kumamoto 860-8555, Japan

Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan

PRESTO, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan

MDX Research Center for Element Strategy, International Research Frontiers Initiative, Tokyo Institute of Technology, Yokohama 226-8503, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology · Grantov? Agentura Cesk? Republiky · Core Research for Evolutional Science and Technology · Japan Society for the Promotion of Science

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