6533b824fe1ef96bd128127a
RESEARCH PRODUCT
Discrete-lattice theory for Frenkel-defect aggregation in irradiated ionic solids
W. Von NiessenV. N. KuzovkovV. N. KuzovkovEugene A. KotominEugene A. Kotominsubject
MetalSuperposition principleColloidMaterials scienceCondensed matter physicsvisual_artKineticsvisual_art.visual_art_mediumFrenkel defectIonic bondingIrradiationMicroscopic theorydescription
Institut fu ¨r Physikalische und Theoretische Chemie, Technische Universitat Braunschweig, D-38106 Braunschweig, Germany~Received 11 September 1997; revised manuscript received 6 April 1998!A microscopic theory of diffusion-controlled aggregation of radiation Frenkel defects—called in ionic solidsH and F centers—is presented. This is based on a discrete-lattice formalism for the single defect densities~concentrations! and the coupled joint densities of similar and dissimilar defects treated in terms of a modifiedKirkwood superposition approximation. The kinetics of defect aggregation is studied in detail; the cooperativecharacter of this process for both types of complementary defects is shown. The theory is applied to thedescription of the kinetics of metal colloid formation during heating of electron-irradiated CaF
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-10-01 | Physical Review B |