Abstract
The a.c. impedance of single crystal specimens of β-PbF2 has been studied as a function of frequency and temperature in the range 10−2 to 105 Hz and 25 to 320°C. A variety of ionically blocking electrode configurations were used and equivalent circuits were derived by complex plane analysis. In addition to bulk resistive and capacitive effects, a complex frequency-dependent interface impedance was identified. The algebraic form and temperature dependence of this impedance were found and variations in its magnitude with changes in electrode material and morphology were measured.
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