Research output: Contribution to journal › Article › peer-review
Electronic Structure of Oxygen Vacancies in the Orthorhombic Noncentrosymmetric Phase Hf0.5Zr0.5O2. / Perevalov, T. V.; Gritsenko, V. A.; Islamov, D. R. et al.
In: JETP Letters, Vol. 107, No. 1, 01.01.2018, p. 55-60.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Electronic Structure of Oxygen Vacancies in the Orthorhombic Noncentrosymmetric Phase Hf0.5Zr0.5O2
AU - Perevalov, T. V.
AU - Gritsenko, V. A.
AU - Islamov, D. R.
AU - Prosvirin, I. P.
N1 - Publisher Copyright: © 2018, Pleiades Publishing, Inc.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85044006723&partnerID=8YFLogxK
U2 - 10.1134/S0021364018010071
DO - 10.1134/S0021364018010071
M3 - Article
AN - SCOPUS:85044006723
VL - 107
SP - 55
EP - 60
JO - JETP Letters
JF - JETP Letters
SN - 0021-3640
IS - 1
ER -
ID: 12027734