The flexoelectricity describes the contribution of the linear couplings between the electric
polarization and strain gradient and between polarization gradient and strain to the …

Flexoelectricity—the coupling between polarization and strain gradients—is a universal
effect allowed by symmetry in all materials. Following its discovery several decades ago …

The flexoelectric effect is the response of electric polarization to a mechanical strain
gradient. It can be viewed as a higher-order effect with respect to piezoelectricity, which is …

Ferroelectric materials are characterized by a permanent electric dipole that can be reversed
through the application of an external voltage, but a strong intrinsic coupling between …

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 …

Flexoelectricity refers to the mechanical-electro coupling between strain gradient and
electric polarization, and conversely, the electro-mechanical coupling between electric field …

The ability of a material to convert electrical stimuli into mechanical deformation, ie
piezoelectricity, is a remarkable property of a rather small subset of insulating materials. The …

We develop a general and unified first-principles theory of piezoelectric and flexoelectric
tensor, formulated in such a way that the tensor elements can be computed directly in the …

The triboelectric effect, charge transfer during sliding, is well established but the
thermodynamic driver is not well understood. We hypothesize here that flexoelectric …

In dielectric materials, due to the flexoelectric effect, a large inhomogeneous deformation
can break or significantly alter the inversion symmetry of the material and induce net …