6533b839fe1ef96bd12a6352

RESEARCH PRODUCT

The kinetics of diffusion-controlled annealing of Frenkel defects in alkali halide crystals

Roberts I. EglitisAnatoly I. PopovEugene A. Kotomin

subject

Nuclear and High Energy PhysicsAnnihilationAnnealing (metallurgy)ChemistryKineticsCoulombHalideElectronAtomic physicsAlkali metalInstrumentationQuantum tunnelling

description

Abstract The annealing kinetics of the strongly correlated (the so-called geminate) pairs of both neutral F,H centers as well as F, I centers entering secondary triplets (F…Ihellip; self-trapped hole) in KCl and KBr crystals is calculated. In this model diffusion of hole I and H centers and their annihilation with electron F centers at short relative distances stimulated by the elastic or Coulomb interaction are taken into account. It is demonstrated that F,H pairs are destroyed by tunneling recombination already at times ≤ 10−4 s, i.e. much before the beginning of the thermostimulated experiments. A possible explanation of this contradiction is discussed.

https://doi.org/10.1016/0168-583x(94)96195-6