نتایج جستجو برای: theory of flexoelectricity
تعداد نتایج: 21222136 فیلتر نتایج به سال:
We report on nanoscale strain gradients in ferroelectric HoMnO(3) epitaxial thin films, resulting in a giant flexoelectric effect. Using grazing-incidence in-plane x-ray diffraction, we measured strain gradients in the films, which were 6 or 7 orders of magnitude larger than typical values reported for bulk oxides. The combination of transmission electron microscopy, electrical measurements, an...
In the later stages of the spinodaldecay the coalescence of like microheterophase inhomogeneities leads to the formation of small-scale grains (up to 5 pm in size) of each of the phases (Fig. l b ) . These grains become grouped in larger-scale aggregates (up to 100 pm in size). This multistage self-organization of stratifying phases leads to the creation of a granular-cellular structure (Fig. l...
We studied the dielectric properties of a polar nematic phase (NF) sandwiched between two gold or ITO electrodes, serving as cell surface. In bulk, NF is expected to exhibit Goldstone mode (phason), because polarisation can uniformly rotate with no energy cost. However, coupling direction director and finite, confinement, even in absence aligning surface layer, induces some cost for reorientati...
We propose a $${\mathcal {C}}^0$$ interior penalty method (C0-IPM) for the computational modelling of flexoelectricity, with application also to strain gradient elasticity, as simplified case. Standard high-order finite element approximations, nodal basis, are considered. The proposed C0-IPM formulation involves second derivatives in elements, plus integrals on mesh faces (sides 2D), that impos...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید