Abstract:
The electronic configuration of chemical bonds between ions forming the structure of the AgI superionics existing in three different crystal modifications is discussed $\alpha$-, $\beta$- and $\gamma$-phases.On the basis of the formulated schemes of hybridization of ion orbitals, the structural phase transitions $\gamma\to\beta$ and $\beta\to\alpha$ occurring with increasing temperature are considered.It is shown that in the high-temperature superionic $\alpha$-phase of the AgI crystal in an external electric field, along with an increase in electronic conductivity, hopping conductivity occurs due to a weakening of the coordination bonds between the ions of the substance and the jumps of silver ions along the ion-conducting channels.
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