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research article
Dynamic flexoelectric effect in perovskites from first-principles calculations
2015
Using the dynamical matrix of a crystal obtained from ab initio calculations, we have evaluated 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 propose 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, currently the only one enabling experimental characterization of the static bulk flexoelectric effect.
Type
research article
Web of Science ID
WOS:000359045700002
Authors
Publication date
2015
Publisher
Published in
Volume
92
Issue
5
Article Number
054104
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
September 28, 2015
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