Mechanically controllable nonlinear dielectrics
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | eaaz3180 |
Journal / Publication | Science Advances |
Volume | 6 |
Issue number | 10 |
Online published | 6 Mar 2020 |
Publication status | Published - Mar 2020 |
Externally published | Yes |
Link(s)
DOI | DOI |
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Attachment(s) | Documents
Publisher's Copyright Statement
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85081096661&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(da090509-a22f-4b61-9e63-88bcc2a3fc0d).html |
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.
Research Area(s)
Citation Format(s)
Mechanically controllable nonlinear dielectrics. / Ko, D. L.; Tsai, M. F.; Chen, J. W. et al.
In: Science Advances, Vol. 6, No. 10, eaaz3180, 03.2020.
In: Science Advances, Vol. 6, No. 10, eaaz3180, 03.2020.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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