Abstract: Crystallization of amorphous Ag⁺ ionic conductor 0.85AgI~0.15Ag₄P₂O₇ was studied by Electron-Spin-Resonanee(ESR).The samples were doped with trace amount Of Mn⁺² or V⁺⁴ as spin probe ions and their concentrations are about 10^-3 gram/gram in each sample,their ESR spectra intensities are weakened linearly with the increase of temperature,and the ESR signal disappears when the sample is completely crystallized.Thus the final crystallization temperatures are 98℃ for Mn-doped and 108℃ for V-doped conductors.The ESR spectra of Mn⁺² and V⁺⁴ are analysed.

Key words: ESR, Ag⁺ ionic conductor, Crystallization of amorphous materials