Localized Positronium‐Like States in Ionic Crystals

Abstract
The localized positronium‐like states in ionic crystals are considered as positron‐electron pair bound states in the Coulomb field of the charge Z. The system characteristics are evaluated as a function of the magnitude Z. The calculated data are in agreement with the experimental ones in alkali halides for charges Z < 0.7. The properties and the formation possibility of the positronium‐like states in ionic crystals are discussed.