Electronic Structure of Oxygen Vacancies in the Orthorhombic Noncentrosymmetric Phase Hf0.5Zr0.5O2

T. V. Perevalov, V. A. Gritsenko, D. R. Islamov, I. P. Prosvirin

Результат исследования: Научные публикации в периодических изданияхстатья

4 Цитирования (Scopus)

Аннотация

The electronic structure of stoichiometric and oxygen-depleted Hf0.5Zr0.5O2 in the orthorhombic noncentrosymmetric phase has been studied by X-ray photoelectron spectroscopy and quantum-chemical simulation based on the density functional theory. It has been established that the ion-etching-induced peak in the photoelectron emission spectrum with the energy above the top of the o-Hf0.5Zr0.5O2 valence band is due to oxygen vacancies. A method of estimating the density of oxygen vacancies from the comparison of the experimental and theoretical photoelectron spectra of the valence band has been proposed. It has been established that oxygen polyvacancies in o-Hf0.5Zr0.5O2 are not formed: the energetically favorable spatial arrangement of oxygen vacancies in a crystal corresponds to noninteracting oxygen vacancies distant from each other.

Язык оригиналаанглийский
Страницы (с-по)55-60
Число страниц6
ЖурналJETP Letters
Том107
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2018

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