Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/82274
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Title: Mechanically controllable nonlinear dielectrics
Authors: Ko, DL
Tsai, MF
Chen, JW
Shao, PW
Tan, YZ
Wang, JJ
Ho, SZ
Lai, YH
Chueh, YL
Chen, YC
Tsai, DP 
Chen, LQ
Chu, YH
Issue Date: 2020
Source: Science advances, Mar. 2020, v. 6, no. 10, eaaz3180, p. 1-11
Abstract: Strain-sensitive BaxSr1-xTiO3 perovskite systems are widely used because of their superior nonlinear dielectric behaviors. In this research, new heterostructures including paraelectric Ba0.5Sr0.5TiO3 (BSTO) and ferroelectric BaTiO3 (BTO) materials were epitaxially fabricated on flexible muscovite substrate. Through simple bending, the application of mechanical force can regulate the dielectric constant of BSTO from -77 to 36% and the channel current of BTO-based ferroelectric field effect transistor by two orders. The detailed mechanism was studied through the exploration of phase transition and determination of band structure. In addition, the phase-field simulations were implemented to provide theoretical support. This research opens a new avenue for mechanically controllable components based on high-quality oxide heteroepitaxy.
Publisher: American Association for the Advancement of Science (AAAS)
Journal: Science advances 
ISSN: 2375-2548
DOI: 10.1126/sciadv.aaz3180
Rights: Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC) (https://creativecommons.org/licenses/by-nc/4.0/).
The following publication Ko, D. L., Tsai, M. F., Chen, J. W., Shao, P. W., Tan, Y. Z., Wang, J. J., . . . & Chu, Y. H. (2020). Mechanically controllable nonlinear dielectrics. Science Advances, 6(10), eaaz3180, 1-11 is available at https://dx.doi.org/10.1126/sciadv.aaz3180
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