Abstract
The electrical properties of lithium ferrite (LiFeO 2) with rock-salt structure have been studied as a function of temperature (380–700°C) and oxygen partial pressure ( 2.1 × 10 4 −5.3 Pa) using AC conductivity measurements. Data analysis in the complex admittance plane revealed the presence of three phase transitions and mixed (electronic and ionic) conduction in LiFeO 2. The nature of the charge carriers depends on temperature and oxygen partial pressure. The defect structure of α-LiFeO 2 at high temperature has been discussed from the oxygen partial pressure dependence of electronic conductivity.
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