Novel Route for Enhancing Piezoelectricity of Ferroelectric Films: Controlling Nontrivial Polarization States in Pb(Zr, Ti)O 3 Monodomain Superlattice Structure.

Autor: Song J; 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., Ebihara Y; Department of Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan., Yudin P; Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, Praha 8 18221, Czech Republic., Sakata O; 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., Morioka H; Application Department, X-ray Division, Bruker Japan K.K., Yokohama 221-0022, Japan., Kiguchi T; Magnesium Research Center, Kumamoto University, Chuo-ku, Kurokami, Kumamoto 860-8555, Japan., Kondo S; Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan., Yuan X; Department of Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan., Okamura S; Department of Applied Physics, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan., Yoshino M; Department of Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan., Nagasaki T; Department of Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan., Yamada T; Department of Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, 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.
Jazyk: angličtina
Zdroj: ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2024 Apr 03; Vol. 16 (13), pp. 16145-16151. Date of Electronic Publication: 2024 Mar 22.
DOI: 10.1021/acsami.3c18721
Abstrakt: 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.
Databáze: MEDLINE