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- W4221036121 abstract "Antiferroelectric [Formula: see text] is a candidate material for application in high-energy density dielectric capacitors. In this context, various doping strategies have been used for installing the desired narrow double P–E loop behavior in this lead-free material. However, controlled doping requires a detailed understanding of the type and population of intrinsic defects, which have not been studied so far. In this study, we, therefore, calculate formation energies, electronic transition levels, and doping behavior of intrinsic defects in cubic [Formula: see text] by means of electronic structure calculations based on density functional theory using a hybrid exchange-correlation functional (HSE06) and finite-size correction. The results show that the dominant defects are Na and O vacancies, and that the material is an [Formula: see text]-type semiconductor for almost all oxygen partial pressures. Additionally, we predict the presence of a defect complex ([Formula: see text]– [Formula: see text]– [Formula: see text]) consisting of two Na vacancies and one O vacancy in two possible structures, which is stable for [Formula: see text]- or [Formula: see text]-type doping conditions." @default.
- W4221036121 created "2022-04-03" @default.
- W4221036121 creator A5002715618 @default.
- W4221036121 creator A5020304363 @default.
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- W4221036121 date "2022-03-28" @default.
- W4221036121 modified "2023-10-18" @default.
- W4221036121 title "Role of intrinsic defects in cubic NaNbO<sub>3</sub>: A computational study based on hybrid density-functional theory" @default.
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- W4221036121 doi "https://doi.org/10.1063/5.0079881" @default.
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