Results 31 to 40 of about 1,370 (166)
, 2021 Bones generate electricity under pressure, and this electromechanical behavior is thought to be essential for bone's self-repair and remodeling properties.
Catalan, Gustau +3 more
core
Flexoelectricity in Solid Dielectrics: From Theory to Applications [PDF]
, 2015 Flexoelectricity phenomenologically describes the universal electromechanical coupling effect between electric polarization and strain gradient, and electric field gradient and elastic strain. In contrast to piezoelectricity which is invalid in materials
Xu Liang, Shuling Hu, Jianfeng Lu
core +1 more source
Condensed Matter, 2020 In a semi-review paper, we show that the local pseudo-Jahn–Teller effect (PJTE) in transition metal B ion center of ABO3 perovskite crystals, notably BaTiO3, is the basis of all their main properties.
Isaac B. Bersuker, Victor Polinger
doaj +1 more source
Engineering of atomic-scale flexoelectricity at grain boundaries
Nature Communications, 2022 Large strain gradient is crucial for flexoelectricity. Here, the authors reveal the generality and tunability of large strain gradients at grain boundaries in oxides, explaining the possible effects on the electrical activities of ceramics.
Mei Wu +12 more
doaj +1 more source
Mathematics, 2022 This study presents a mathematical size-dependent model capable of investigating the dynamic behavior of a sandwich perforated nanobeam incorporating the flexoelectricity effect.
Ammar Melaibari +4 more
doaj +1 more source
Applications of Flexoelectricity
, 2012 There have been a number of attempts to utilize the flexoelectric effect for electro-optic devices. Most of these have been aimed at new display modes, sometimes inspired by the twisted nematic (TN) cell and often with the aim of attaining bistability ...
Rudquist, Per +6 more
core +1 more source
Energies, 2022 Flexoelectric and piezoelectric effects have attracted the attention of researchers, owing to their applications in sensing systems and actuators. In this paper, the vibration of functionally graded material (FGM) conical nanoshell is studied, taking ...
Siros Khorshidi +3 more
doaj +1 more source
Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry
Advanced Functional Materials, EarlyView.In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite +5 more
wiley +1 more source
Enhanced flexoelectricity at reduced dimensions revealed by mechanically tunable quantum tunnelling [PDF]
, 2019 Flexoelectricity is a universal electromechanical coupling effect whereby all dielectric materials polarise in response to strain gradients. In particular, nanoscale flexoelectricity promises exotic phenomena and functions, but reliable characterisation ...
Daesu Lee +7 more
core +4 more sources
Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes
Advanced Functional Materials, EarlyView.We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar +13 more
wiley +1 more source