Sub-Nanometer Curvature Unlocks Quantum Orbital Flexoelectricity in Graphene. [PDF]
Adv MaterIn self‐assembled, reproducible, large‐area, quasi‐pristine graphene nanowrinkles, extreme curvature forces out‐of‐plane π‐electrons toward hybridization, driving a transition from classical to quantum orbital flexoelectricity. As curvature approaches the fundamental physical limit set by the C─C bond length, the resulting polarization increases by ...
Iyengar SA +8 more
europepmc +2 more sources
Fabrication and measurement of a flexoelectric micro-pyramid composite
AIP Advances, 2014 A fabrication method by combining precision mechanical dicing and wet etching was developed to prepare micro-pyramid structures based on (Ba0.67Sr0.33)TiO3 ceramics.
Wenbin Huang +5 more
doaj +4 more sources
Microbial autotrophy driven by extracellular electrons generated from mechanical forces via flexoelectricity [PDF]
Nature CommunicationsMechanical force has recently emerged as a microbial energy source through direct mechanical-to-electrical energy conversion. However, the flexoelectric effect, a universal mechanoelectrical coupling phenomenon, remains underexplored as an energy source ...
Yue Lai +4 more
doaj +2 more sources
Converse flexoelectric two-dimensional MoS2 actuator [PDF]
Nature CommunicationsConverse flexoelectric actuators offer significant potential for diverse applications due to their rapid response, resilience in extreme environments, and broad material compatibility.
Yeageun Lee +6 more
doaj +2 more sources
Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics. [PDF]
Adv Sci (Weinh)Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Bai D, He R, Liu J, Kou L.
europepmc +2 more sources
Influence of impact velocity on flexoelectric effect
Results in Physics, 2019 Flexoelectric effect is the coupling of the inhomogeneous deformation and electric polarization, which exists widely in dielectrics. At present, although some scholars have carried out the experimental research on the measurement of the flexoelectric ...
Taotao Hu +4 more
doaj +2 more sources
Progress in Flexoelectric Effect Research and Related Applications
SmartSysThe flexoelectric effect refers to the electromechanical coupling between electric polarization and mechanical strain gradient. It universally exists in a variety of materials in any space group, such as liquid crystals, dielectrics, biological materials,
Junyi Zhai, Di Guo
exaly +2 more sources
Flexoelectrically Induced Polar Topology in Twisted SrTiO<sub>3</sub> Membranes. [PDF]
Adv MaterTwisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Tenreiro I +13 more
europepmc +2 more sources
Nonlinear forced vibration of the FGM piezoelectric microbeam with flexoelectric effect
Alexandria Engineering JournalIn this paper, based on the extended dielectric theory, Euler beams theory and von Karman’s geometric nonlinearity, a nonlinear FGM piezoelectric microbeam model is established with flexoelectric effect.
Lichang Shan +8 more
doaj +2 more sources
Localization of elastic waves in one-dimensional detuned phononic crystals with flexoelectric effect
International Journal of Smart and Nano Materials, 2022 Although forbidden band effect in perfectly periodic phononic crystals (PC) is very attractive, random disordered (i.e. detuning) phenomenon is inevitable in engineering processing, thus exploring the effect of detuning on the wave characteristics of PC ...
Cheng Shen +3 more
doaj +2 more sources