Electronic Structure and Magnetic Properties of Cobalt-Doped Nonstoichiometric Rutile Thin Films

N. A. Skorikov, M. A. Korotin

Research output: Contribution to journalArticlepeer-review

Abstract

The coherent potential method has been applied for the investigation of Co substitutional doping influence on the spectral and magnetic properties of TiO2 rutile (100) surface. Both stoichiometric and nonstoichiometric oxygen compositions have been considered. For the stoichiometric case, the energy spectrum corresponds to half-metallic ferromagnet. The Co ions are in 2 + formal oxidation state with a spin magnetic moment of 0.8 μB. The presence of oxygen vacancies makes the surface insulating and increases the Co spin magnetic moment value.

Original languageEnglish
Pages (from-to)1371-1375
Number of pages5
JournalJournal of Superconductivity and Novel Magnetism
Volume32
Issue number5
DOIs
Publication statusPublished - 15 May 2019
Externally publishedYes

Keywords

  • Coherent potential approximation
  • Diluted magnetic semiconductor
  • Electronic structure
  • Two-dimensional rutile

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