Stephen Richard Elliott

The chemical-bonding origins of over-coordinated defects in chalcogenide glasses

Point defects in (sulfide, selenide) chalcogenide glasses have traditionally been described by the venerable ‘valence-alternation-pair’ (VAP) model of coordination defects, due to Mott, Davis and Street, and Kastner, Adler and Fritzsche. For the case of pure chalcogens (e.g. Se),...