Abstract
— The results of three experiments on point defects in AgCl are described. (1) For the diffusion of tracers of the divalent cations of the first transition row, the variation of the activation energy is quantitatively accounted for by the effects of the crystalline electric field. (Research in collaboration with J. Hernandez). (2) Using the diffusivity of Na tracer as a probe for the concentration of vacancies in AgCl, the temperature-dependence of the Frenkel defect formation energy is determined and found to agree with that proposed by Aboagye and Friauf. (3) The aggregation of Mn-vacancy dipoles in AgCl is studied by both ITC and EPR, and is found to proceed by either 2nd or 3rd order kinetics, depending on the initial supersaturation. (Research performed by J. Dutta and D. Golopentia).
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