Controllable piezoelectricity of Pb(Zr0.2Ti0.8)O3 film via in situ misfit strain
- Gwangju Inst. of Science and Technology (Korea, Republic of). School of Materials Science and Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
- Martin Luther Univ. of Halle-Wittenberg, Halle (Germany). Inst. for Physics
- Ulsan Inst. of Science and Technology (Korea, Republic of). School of Energy and Chemical Engineering
In this paper, the tetragonality (c/a) of a PbZr0.2Ti0.8O3 (PZT) thin film on La0.7Sr0.3MnO3/0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 (PMN-PT) substrates was controlled by applying an electric field on the PMN-PT substrate. The piezoelectric response of the PZT thin film under various biaxial strains was observed using time-resolved micro X-ray diffraction. The longitudinal piezoelectric coefficient (d33) was reduced from 29.5 to 14.9 pm/V when the c/a ratio of the PZT film slightly changed from 1.051 to 1.056. Finally, our results demonstrate that the tetragonality of the PZT thin film plays a critical role in determining d33, and in situ strain engineering using electromechanical substrate is useful in excluding the extrinsic effect resulting from the variation in the film thickness or the interface between substrate.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Gwangju Inst. of Science and Technology (Korea, Republic of); Martin Luther Univ. of Halle-Wittenberg, Halle (Germany)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program; National Research Foundation of Korea (NRF); Gwangju Inst. of Science and Technology (Korea, Republic of); POSCO TJ Park Foundation (Korea, Republic of); German Research Foundation (DFG)
- Contributing Organization:
- Ulsan Inst. of Science and Technology (Korea, Republic of)
- Grant/Contract Number:
- AC05-00OR22725; NRF-2014R1A1A3053111; SFB 762
- OSTI ID:
- 1340448
- Alternate ID(s):
- OSTI ID: 1985556
- Journal Information:
- Applied Physics Letters, Vol. 110, Issue 3; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Time-resolved X-ray diffraction system for study of Pb(Zr, Ti)O 3 films under a temporal electric field at BL15XU, SPring-8
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journal | September 2019 |
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