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Data for Auxetic piezoelectric effect in heterostructures
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Mingmin, Yang and Alexe, Marin (2023) Data for Auxetic piezoelectric effect in heterostructures. [Dataset]
Microsoft Excel (Dataset V.2 (Updated))
Data of Auxetic Piezoelectric Effect.xlsx - Published Version Available under License Creative Commons Attribution 4.0. Download (3523Kb) |
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Microsoft Excel (Dataset V.1)
Data of Auxetic Piezoelectric Effect.xlsx - Published Version Embargoed item. Restricted access to Repository staff only Download (3523Kb) |
Abstract
Inherent symmetry breaking at interface has been fundamental to a myriad of physical effects and functionalities, such as efficient spin-charge interconversion, exotic magnetic structures, and emergent bulk photovoltaic effect 1-5. It is recently demonstrated that interface asymmetry can induce sizable piezoelectric effects in heterostructures even consisting of centrosymmetric semiconductors, which provide unprecedented flexibility to develop and optimize novel electromechanical coupling phenomena. 6 Here, by targeted engineering of the interface symmetry, we achieve unprecedented piezoelectric phenomena behaving as the electrical analogue of the negative Poisson’s ratio. This, termed as the auxetic piezoelectric effect, exhibits the same sign of the longitudinal (d33) and transverse (d31, d32) piezoelectric coefficients, enabling a simultaneous contraction or expansion in all directions under the external electrical stimulus. The signs of the transverse coefficients can be further tuned via in-plane symmetry anisotropy. The effects exist in a wide range of material systems and exhibit significant coefficients, indicating potential implications in novel all-semiconductor actuator, sensor and filter applications.
Item Type: | Dataset | |||||||||||||||
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Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||
Type of Data: | Dataset | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Auxetics (Materials), Piezoelectricity, Heterostructures | |||||||||||||||
Publisher: | University of Warwick, Department of Physics | |||||||||||||||
Official Date: | 2023 | |||||||||||||||
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Status: | Not Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Media of Output (format): | Excel data | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Description: | Dataset to support a forthcoming paper in 'Nature Materials'. |
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Date of first compliant deposit: | 28 November 2023 | |||||||||||||||
Date of first compliant Open Access: | 28 November 2023 | |||||||||||||||
RIOXX Funder/Project Grant: |
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