Examination of permittivity for depolarization field of ferroelectric by ab initio calculation, suggesting hidden mechanisms

Abstract Electrostatics of depolarization field E d in relation to the polarization is studied. In particular, the value of permittivity for E d (ε d ) in prototypical situations of ferroelectrics, including Mehta formula, is examined by ab initio calculations. By using spontaneous polarization P S...

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Bibliographic Details
Main Author: Yukio Watanabe
Format: Article
Language:English
Published: Nature Portfolio 2021-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-81237-0