Optical properties of polycrystalline alumina after irradiation with iron ions and annealing

A. V. Kabyshev, F. V. Konusov

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Optical absorption of polycrystalline corundum (polycor) after irradiation with iron ions and subsequent annealing in vacuum was studied. It was found that substitutional, intrinsic radiation, biographical defects, and complexes on their basis have an effect on the absorption parameters and optical transitions between localized states and allowed bands. The contributions to changes in the optical properties of individual substitutional defects, their clusters, and complexes with the participation of substitutional defects and radiation defects were singled out. The influence of defects and iron oxides formed upon annealing on absorption was estimated. The most proable nature of clusters of substitutional defects and impurity-vacancy complexes was identified.

Original languageEnglish
Pages (from-to)229-234
Number of pages6
JournalJournal of Surface Investigation
Issue number2
Publication statusPublished - Apr 2007


ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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