Saturation of Debye Screening Length and the Free Energy of Superionic PbF sub 2

摘要

Recent experiments on the fast-ion conductor PbF sub 2 have yielded the fraction of anions leaving their regular lattice sites as a function of temperature. From this data we have calculated the chemical potential of the defects. This data is then related to the predictions of Debye-Hueckel theory, valid for very low concentrations of defects. The conclusion is that there is saturation of the Debye screening length with increasing concentration of defects. (Atomindex citation 13:712249)