Enhanced intrinsic piezoelectric response in (001)-epitaxial single c -domain Pb(Zr,Ti)O3nanorods

Kazuki Okamoto, Tomoaki Yamada, Kentaro Nakamura, Hidenori Takana, Osami Sakata, Mick Phillips, Takanori Kiguchi, Masahito Yoshino, Hiroshi Funakubo, Takanori Nagasaki

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1 Citation (Scopus)

Abstract

In this study, (001)-epitaxial tetragonal phase Pb(Zr, Ti)O3 (PZT) nanorods were fabricated on SrRuO3/SrTiO3 substrates by pulsed laser deposition. The PZT nanorods were self-assembled and grown on the substrate at an elevated oxygen pressure, and showed a complete c-domain structure. Time-resolved x-ray diffraction measurements under an applied electric field show that the fabricated PZT nanorods exhibit a piezoelectric constant, d 33, that is significantly higher than that of thin PZT films and comparable to that for unclamped single-domain bulk crystals, which is thought to be due to a significant reduction in substrate clamping. The obtained results demonstrate that the self-assembled nanorods can achieve an enhanced intrinsic piezoelectric response, which makes them attractive for a range of practical applications.

Original languageEnglish
Article number042905
JournalApplied Physics Letters
Volume117
Issue number4
DOIs
Publication statusPublished - 2020 Jul 27

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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