Results 81 to 90 of about 4,906 (246)

Flexoelectricity in amorphous hafnium oxide (HfO2)

open access: yesAPL Materials
Flexoelectricity, inherent in all materials, offers a promising alternative to piezoelectricity for nanoscale actuation and sensing. However, its widespread application faces significant challenges: differentiating flexoelectric effects from those of ...
Daniel Moreno-Garcia   +2 more
doaj   +1 more source

A Staggered Explicit-Implicit Finite Element Formulation for Electroactive Polymers

open access: yes, 2018
Electroactive polymers such as dielectric elastomers (DEs) have attracted significant attention in recent years. Computational techniques to solve the coupled electromechanical system of equations for this class of materials have universally centered ...
Park, Harold S.   +2 more
core   +1 more source

Optical Manipulation of Multiferroic Phases in BiFeO3 Thin Films

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 7, 7 April 2026.
At the strain‐driven morphotropic phase boundary, optical control over the multiferroic rhombohedral and tetragonal phase mixture is demonstrated using above‐bandgap light illumination. The photoinduced charge carriers modify the electrostatic environment and induce the conversion into a single tetragonal phase.
Bixin Yan   +7 more
wiley   +1 more source

Electromechanical Coupling Analysis of a Piezoelectric–Flexoelectric–Semiconductor Cantilever Beam

open access: yesMicromachines
This paper presents a theoretical study on the electromechanical coupling response of piezoelectric–flexoelectric–semiconductor (PFS) nanocantilevers by adopting flexoelectric elasticity and semiconductor theory.
Yaxuan Su, Xuezhi Wu, Zhidong Zhou
doaj   +1 more source

On the flexoelectric deformations of finite size bodies

open access: yes, 2013
Exact equations describing flexoelectric deformation in solids, derived previously within the framework of a continuum media theory, are partial differential equations of the fourth order.
Yurkov, A. S.
core   +1 more source

Proximity Ferroelectricity in Compositionally Graded Structures

open access: yesAdvanced Electronic Materials, Volume 12, Issue 7, 6 April 2026.
We perform the finite element modeling of the polarization switching in the compositionally graded AlN‐Al1‐xScxN and ZnO‐Zn1‐xMgxO structures and reveal the switching of spontaneous polarization in the whole structure in all these systems. The coercive field to switch is significantly lower than the electric breakdown field of the unswitchable AlN and ...
Eugene A. Eliseev   +4 more
wiley   +1 more source

Flexible Memory: Progress, Challenges, and Opportunities

open access: yesAdvanced Intelligent Discovery, Volume 2, Issue 2, April 2026.
Flexible memory technology is crucial for flexible electronics integration. This review covers its historical evolution, evaluates rigid systems, proposes a flexible memory framework based on multiple mechanisms, stresses material design's role, presents a coupling model for performance optimization, and points out future directions.
Ruizhi Yuan   +5 more
wiley   +1 more source

A freestanding ferroelectric thin film-based soft strain sensor

open access: yesJournal of Materiomics
Flexoelectric and photo-flexoelectricity are scientifically intriguing and hold considerable potential for various applications such as soft strain sensing, photovoltaics, energy harvesting, etc.
Jianping Guo   +7 more
doaj   +1 more source

Electromechanical Analysis of Flexoelectric Nanosensors Based on Nonlocal Elasticity Theory

open access: yesMicromachines, 2020
Flexoelectric materials have played an increasingly vital role in nanoscale sensors, actuators, and energy harvesters due to their scaling effects. In this paper, the nonlocal effects on flexoelectric nanosensors are considered in order to investigate ...
Yaxuan Su, Zhidong Zhou
doaj   +1 more source

Theory of Polar Blue Phases

open access: yes, 2014
In liquid crystals, if flexoelectric couplings between polar order and director gradients are strong enough, the uniform nematic phase can become unstable to formation of a modulated polar phase.
Allender, David W.   +2 more
core   +1 more source

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