Results 31 to 40 of about 388,640 (201)

The bending and vibration responses of functionally graded piezoelectric nanobeams with dynamic flexoelectric effect

Results in Physics, 2021
Dynamic flexoelectric effect refers to the coupling between polarization and acceleration of a material, which is usually ignored in previous works.
Pengfei Yu, Weifeng Leng, Liming Peng, Yaohong Suo, Jinquan Guo   +4 more
doaj   +1 more source

Coupling effect of impact and in-layer voltage on flexoelectricity of PDMS laminated structures

Polymer Testing, 2022
The low flexoelectric coefficients of polymers are the key problem that limit their application. In this paper, electret-like PDMS/metal conductive layer/PDMS laminated structures have been prepared, an internal electric field are applied on the metal ...
Mengzhou Chang, Ke Li, Chang Liu, Bingyu Leng, Kai Guo, Chuang Chen, Yafei Han, Liping He, Enling Tang   +8 more
doaj   +1 more source

Flexoelectric manipulation of ferroelectric polarization in self-strained tellurium. [PDF]

Sci Adv
Beyond conventional ferroelectric compounds, the realization of single-element ferroelectricity expands the scope of ferroelectric materials and diversifies polarization mechanisms. However, strategies for manipulating ferroelectric dipoles in elemental ferroelectrics remain underexplored, limiting their broader applications.
Yan Y, Liang X, Wang L, Zhang Y, Zhou J, Wang W, Zhang Z, Zhou Y, Firdous I, Lai Z, Wang W, Xie P, Xiong Y, Daoud WA, Fan Z, Shin DM, Yang Y, Lu Y, Zeng XC, Meng Y, Ho JC.   +20 more
europepmc   +3 more sources

Flexoelectric polarizing and control of a ferromagnetic metal

, 2022
Abstract Electric polarization can only be well defined in insulators, not in metals, and there is no general scheme to induce and control bulk polarity in metals. Here, we circumvent this limitation by utilizing a pseudo-electric field generated by inhomogeneous lattice strain, namely a flexoelectric field, as a universal means of polarizing ...
Wei Peng, Se Young Park, Chang Jae Roh, Junsik Mun, Hwiin Ju, Jinkwon Kim, Eun Kyo Ko, Zhengguo Liang, Sungsoo Hahn, Jinfeng Zhang, Liang Si, Yong Jin Jo, Yongjoo Jo, Tae Heon Kim, Changyoung Kim, Lingfei Wang, Miyoung Kim, Jong Seok Lee, Tae Won Noh, Daesu lee   +19 more
openaire   +1 more source

Numerical Simulation of Flow-Induced Flexoelectric Effect in Liquid Crystals

Journal of Fluid Science and Technology, 2007
As a fundamental research for developing new liquid crystalline devices, numerical simulations on flexoelectric polarization in liquid crystals under shear flow has been performed using the Leslie-Ericksen continuum theory.
Takanori NAGAE, Tomohiro TSUJI, Shigeomi CHONO   +2 more
doaj   +1 more source

Flexoelectric rotation of polarization in ferroelectric thin films

Nature Materials, 2011
Strain engineering enables modification of the properties of thin films using the stress from the substrates on which they are grown. Strain may be relaxed, however, and this can also modify the properties thanks to the coupling between strain gradient and polarization known as flexoelectricity.
Catalan, G., Lubk, A., Vlooswijk, A.H.G., Snoeck, E., Magen, C., Janssens, J.A., Janssens, A., Rispens, G., Rijnders, Augustinus J.H.M., Blank, David H.A., Noheda, B.   +10 more
openaire   +4 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, Xuezhi Wang, Yabin Yan, Lijun Chen, Wei Xu   +4 more
doaj   +1 more source

Enhanced polarization and abnormal flexural deformation in bent freestanding perovskite oxides

Nature Communications, 2022
Freestanding perovskite oxides pave the way to novel flexural properties. Here, the authors observe the nanoscale strain gradient induced flexoelectric polarization with an unusual flexo-expansion/shrinkage effect in freestanding ferroelectric oxide.
Songhua Cai, Yingzhuo Lun, Dianxiang Ji, Peng Lv, Lu Han, Changqing Guo, Yipeng Zang, Si Gao, Yifan Wei, Min Gu, Chunchen Zhang, Zhengbin Gu, Xueyun Wang, Christopher Addiego, Daining Fang, Yuefeng Nie, Jiawang Hong, Peng Wang, Xiaoqing Pan   +18 more
doaj   +1 more source

Flexoelectric Thin-Film Photodetectors

, 2022
The flexoelectric effect, which manifests itself as a strain-gradient-induced electrical polarization, has triggered great interest due to its ubiquitous existence in crystalline materials without the limitation of lattice symmetry.
Jiang, Zhizheng, Ning, Shoucong, Guo, Mengyao, Wen, Zheng, Pennycook, Stephen J., Song, Dongsheng, Wu, Ming, Dai, Ji-yan, Lou, Xiaojie, Zhang, Fan   +9 more
core   +1 more source

Flexoelectricity and the polarity of complex ferroelastic twin patterns [PDF]

Physical Review B, 2016
We study, by means of an atomistic toy model, the interplay of ferroelastic twin patterns and electrical polarization. Our molecular dynamics simulations reproduce polarity in straight twin walls as observed experimentally. We show, by making contact with continuum theory, that the effect is governed by linear flexoelectricity.
Salje, E. K. H., Li, S., Stengel, M., Gumbsch, P., Ding, X.   +4 more
openaire   +3 more sources