Size-dependent direct and converse flexoelectricity around a micro-hole
Sign Up to like & getrecommendations! Published in 2020 at "Acta Mechanica"
DOI: 10.1007/s00707-020-02792-7
Abstract: In this paper, the complete explicit solution for physical fields around a micro-hole is solved with the simultaneous consideration of the strain gradient elasticity, the direct flexoelectricity, and the converse flexoelectricity. First, the higher-order Navier-like… read more here.
Keywords: flexoelectricity; around micro; converse flexoelectricity; size ... See more keywords
Design of a flexure composite with large flexoelectricity
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-017-6339-2
Abstract: Flexoelectric effect has attained considerable interests owing to its potential sensing and actuating application. However, even highly developed in the past few years, the present flexoelectricity of materials are still difficult to satisfy the standard… read more here.
Keywords: flexoelectricity; composite large; design flexure; flexure ... See more keywords
On some basic aspects of flexoelectricity in the mechanics of materials
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Engineering Science"
DOI: 10.1016/j.ijengsci.2021.103499
Abstract: Abstract Flexoelectricity is an interesting electromechanical coupling that exists in all dielectrics when the deformation is inhomogeneous. The intensity of flexoelectricity is highly related to the deformation gradient and the dimensions of dielectric structures. Although… read more here.
Keywords: aspects flexoelectricity; mechanics materials; basic aspects; flexoelectricity ... See more keywords
Geometry Independent Direct and Converse Flexoelectric Effects in Functionally Graded Dielectrics: An Isogeometric Analysis
Sign Up to like & getrecommendations! Published in 2020 at "Mechanics of Materials"
DOI: 10.1016/j.mechmat.2020.103456
Abstract: Abstract In the present study, a functionally graded material (FGM) based dielectric composite is investigated for direct and converse flexoelectric effects induced due to material inhomogeneity. An Isogeometric analysis based formulation is employed to effectively… read more here.
Keywords: direct converse; flexoelectricity; functionally graded; flexoelectric effects ... See more keywords
Directly Observing the Evolution of Flexoelectricity at the Tip of Nanocracks.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c03614
Abstract: As an electromechanical coupling between strain gradients and polarization, flexoelectricity is largely enhanced at the nanoscale. However, directly observing the evolution of flexoelectric fields at the nanoscale usually suffers from the difficulty of producing strain… read more here.
Keywords: flexoelectricity; observing evolution; evolution flexoelectricity; tip ... See more keywords
Tunable Out-of-Plane Piezoelectricity in Thin-Layered MoTe2 by Surface Corrugation-Mediated Flexoelectricity.
Sign Up to like & getrecommendations! Published in 2018 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.8b06325
Abstract: Piezoelectricity crystallographically exists only in the in-plane direction in two-dimensional transition metal dichalcogenides. Here, we demonstrated flexoelectricity-tunable out-of-plane piezoelectricity in semiconducting 2H-MoTe2 flakes by creating surface corrugation. In particular, the strong out-of-plane piezoelectricity and its spatial… read more here.
Keywords: surface corrugation; plane piezoelectricity; flexoelectricity; piezoelectricity ... See more keywords
Converse flexoelectricity yields large piezoresponse force microscopy signals in non-piezoelectric materials
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-09266-y
Abstract: Converse flexoelectricity is a mechanical stress induced by an electric polarization gradient. It can appear in any material, irrespective of symmetry, whenever there is an inhomogeneous electric field distribution. This situation invariably happens in piezoresponse… read more here.
Keywords: flexoelectricity; microscopy; force microscopy; piezoresponse force ... See more keywords
Investigation of The Cellular Response to Bone Fractures: Evidence for Flexoelectricity
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-019-57121-3
Abstract: The recent discovery of bone flexoelectricity (strain-gradient-induced electrical polarization) suggests that flexoelectricity could have physiological effects in bones, and specifically near bone fractures, where flexoelectricity is theoretically highest. Here, we report a cytological study of… read more here.
Keywords: flexoelectricity; bone fractures; bone; cellular response ... See more keywords
Flexoelectricity in a metal/ferroelectric/semiconductor heterostructure
Sign Up to like & getrecommendations! Published in 2018 at "AIP Advances"
DOI: 10.1063/1.5031162
Abstract: The flexoelectricity in a 100 nm-thick BaTiO3 (BTO) thin film based metal/ferroelectric insulator/semiconductor (MFS) heterostructure was reported in this letter. The transverse flexoelectric coefficient of the BTO thin film in the heterojunction structure was measured… read more here.
Keywords: metal ferroelectric; flexoelectricity; semiconductor; thin film ... See more keywords
Effects of flexoelectricity and strain gradient on bending vibration characteristics of piezoelectric semiconductor nanowires
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Applied Physics"
DOI: 10.1063/5.0038782
Abstract: In this paper, the governing equation of a piezoelectric semiconductor (PSC) is derived after a consideration of flexoelectricity and the strain gradient effect. A one-dimensional first-order beam model is obtained through integration across its section.… read more here.
Keywords: strain gradient; piezoelectric semiconductor; flexoelectricity; flexoelectricity strain ... See more keywords
Charge-, salt- and flexoelectricity-driven anchoring effects in nematics
Sign Up to like & getrecommendations! Published in 2020 at "Liquid Crystals"
DOI: 10.1080/02678292.2020.1786176
Abstract: ABSTRACT We investigate the effects of electric double layers and flexoelectricity on the surface anchoring in general nematic fluids. Within a simplified model, we demonstrate for a nematic electrolyte how the surface anchoring strength can… read more here.
Keywords: surface charge; charge salt; flexoelectricity; surface anchoring ... See more keywords