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Russian Physics Journal

, Volume 43, Issue 3, pp 211–214 | Cite as

Mechanisms of creation and destruction of polyhalide V centers in irradiated AHC

  • D. M. Salikhodzhaev
  • A. T. Akylbekov
  • K. S. Kaktybekov
  • T. N. Nurakhmedov
Article

Abstract

The mechanisms of creation and destruction of polyhalide V centers in AHC were modeled by the MNDO semiempirical quantum-chemical method. It is shown that X 3 molecules dissociate from the ground state into X 2 0 and X and from the triplet state into X 2 and X0, whereas X 5 and X 7 molecules dissociate into X 3 and X 2 0 and X 5 and X 2 0 , respectively. At room temperatures, X 3 or larger aggregates, which consist only of X 3 centers, form stable polyhalide V centers. It is shown that the thermal stability decreases when going along the series X 3 , X 5 , and X 7 . The radiation-induced instability of stable F centers in AHC at room temperatures is associated with the destruction of X 3 centers and the thermal instability of X 5 and X 7 centers.

Keywords

Triplet State Dissociation Energy Versus Center Stable Defect Prolonged Irradiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic/Plenum Publishers 2000

Authors and Affiliations

  • D. M. Salikhodzhaev
  • A. T. Akylbekov
  • K. S. Kaktybekov
  • T. N. Nurakhmedov

There are no affiliations available

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