Dynamic flexoelectric effect in perovskites from first principles calculations
arXiv:1503.05355 · doi:10.1103/PhysRevB.92.054104
Abstract
Using the dynamical matrix of a crystal obtained from ab initio calculations, we have evaluated for the first time the strength of the dynamic flexoelectric effect and found it comparable to that of the static bulk flexoelectric effect, in agreement with earlier order-of-magnitude estimates. We also proposed a method of evaluation of these effects directly from the simulated phonon spectra. This method can also be applied to the analysis of the experimental phonon spectra, being currently the only one enabling experimental characterization of the static bulk flexoelectric effect.
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Cited by in corpus (14)
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- The Influence of Electric Field on the Anisotropic Dispersion of the Flexocoupling Induced Phonons and Ferrons in Van der Waals Ferrielectrics
- Flexoelectricity induced spatially modulated phases in ferroics and liquid crystals (Author review)