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The effect of oxygen vacancies on the atomic and electronic structure of cubic ABO3 perovskite bulk and the (001) surface: Ab initio calculations

  • University of Latvia
  • Northwestern University
  • Max Planck Institute for Solid State Research
  • University of Duisburg-Essen

Zinātniskās darbības rezultāts: Devums žurnālamKonferences zinātniskais rakstskoleģiāli recenzēts

12 Atsauces (Scopus)

Kopsavilkums

We employed the hybrid DFT-LCAO and GGA-PW approaches as implemented in the CRYSTAL and VASP codes, respectively, for large supercell calculations of neutral O vacancies with trapped electrons (known as F centers) in the bulk and on the (001) surface of three cubic perovskite crystals (SrTiO3, PbTiO3, and PbZrO3). The local lattice relaxation, charge redistribution, and positions of defect energy levels within the band gap are compared for three perovskites under study. We demonstrate how the difference in chemical composition of host materials leads to quite different defect properties.

OriģinālvalodaAngļu
Lapas (no-līdz)191-198
Lapu skaits8
ŽurnālsFerroelectrics
Sējums379
Izdevuma numurs1 PART 2
DOIs
Publikācijas statussPublicēts - 2009
Pasākums9th Russian-CIS-Baltic-Japanese Symposium on Ferroelectricity, RCBJSF-9 - Vilnius, Lietuva
Ilgums: 15 jūn. 200819 jūn. 2008

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