Paramagnetic Resonance Study of Copper-Doped Silver Chloride

This paper gives the results of paramagnetic resonance studies of copper in silver chloride crystals at temperatures between 77^∘{}K and room temperature. The crystals were treated in various ways by illumination or halogenation.Resonances were observed in halogenated crystals which are interpreted as arising from Cu⁺⁺ ions occupying sites which differ as to the presence and relative positions of associated vacancies. These spectra were observed to vary with temperature in a manner attributable to vacancy motion. The activation energy for this motion is estimated.An estimate is made of the amount of Cu-Cl bonding through an approximate line-width analysis.Speculations are offered as to the role of the copper ion in the photolytic process in silver chloride, and further experiments are suggested.