Results 91 to 100 of about 1,489 (205)

Effect of annealing on flexoelectricity in hafnium oxide (HfO2)

Flexoelectricity is universal in all dielectrics, effective at high temperatures, and a promising transduction technique for nanoelectromechanical systems (NEMS).
Moreno Garcia, Daniel, Villanueva, Guillermo   +1 more
core   +2 more sources

Flexoelectricity driven elastic contact–separation model for triboelectrification

Friction
Triboelectrification is the transfer of electrical charge between surfaces during contact. When the contact is purely normal (i.e., no sliding), the term contact electrification is often used.
Ulvis Silavnieks, Qingshen Jing, Nikolaj Gadegaard, Daniel M. Mulvihill, Yang Xu   +4 more
doaj   +1 more source

Flexoelectricity in nematic domain walls

Physical Review E, 2008
Flexoelectric effects are studied in the domain walls of a nematic liquid crystal device showing the Freedericksz transition. Walls parallel to the alignment direction have a strong twist distortion and an electro-optic effect dominated by e1-e3 is seen.
openaire   +2 more sources

Towards understanding flexoelectricity at the nanoscale

, 2023
We review the authors' recent works on flexoelectricity at the nanoscale [arXiv:2010.01747, arXiv:2010.13899], while emphasizing the role of continuum mechanics in interpreting the electromechanical response of quantum mechanical systems under bending ...
Codony, David, Suryanarayana, Phanish, Arias, Irene   +2 more
core  

Multiple electromechanical coupling in wrinkled monolayer MoS2

New Journal of Physics
The electromechanical coupling of two-dimensional (2D) transition metal dichalcogenides (TMDs) is crucial for the design of highly efficient optoelectronic devices.
Junjie Liu, Wenhu Liao, Yan He, Jiansheng Dong, Gang Ouyang   +4 more
doaj   +1 more source

Measuring Direct Flexoelectricity at the Nanoscale

IEEE Electron Device Letters
Flexoelectricity is a property of all dielectric materials, where inhomogeneous strain induces electrical polarization. This effect becomes particularly prominent at the nanoscale where larger strain gradients can be obtained. While flexoelectric charges have been measured in mm-scale systems, direct measurements in nanoscale-thickness materials have ...
Daniel Moreno-Garcia, Luis Guillermo Villanueva   +1 more
openaire   +3 more sources

Flexoelectricity and surface phase transition in natural ice

, 2022
The phase diagram of ice is complex and contains many phases, but the most common (frozen water at ambient pressure, also known as 1h ice) is a non-polar material despite individual water molecules being polar themselves1,2.
Catalan, Gustau, Wen, Xin, Ma, Qianqian, Shen, Shengping   +3 more
core  

Flexoelectric Effect in Biaxial Nematics

Acta Physica Polonica A, 2012
The flexoelectric (FE) effect provides a linear coupling between electric polarization and orientational deformation in liquid crystals. It influences many electrooptical phenomena and it is used in some bistable nematic devices. A statistical theory of dipole FE polarization in biaxial nematic liquid crystals is used to calculate temperature ...
openaire   +2 more sources

Flexoelectricity in bones

This is the peer reviewed version of the following article: Vazquez Sancho, F., Abdollahi, A., Damjanovic, D., Catalan, G. Flexoelectricity in bones. "Advanced materials", 18 Gener 2018, vol. 30, núm. 9, p.
Catalan, Gustau, Damjanovic, Dragan, Vazquez Sancho, Fabian, Abdollahi Hosnijeh, Amir   +3 more
core  

On the Axiom of the Second Law of Thermodynamics and the Modelling of Flexoelectricity

Foundations
The present paper addresses models of non-local materials and, in particular, flexoelectric materials as dielectrics with higher-order gradients. While the literature develops the subject through variational formulations, here the modelling is developed ...
Angelo Morro
doaj   +1 more source