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The electrical conductivity of polycrystalline Li4/3Ti5/3O4 is reported between ∼300K and ∼1000K. Sintered and commercial pressed pellets were used for measurements. Impedance spectroscopy was applied (20Hz–1MHz) to determine the DC conductivity σDC and AC conductivity σAC. Anomalies of σDC were observed at higher temperatures as a consequence of presumed order–disorder phase transitions, coupled...
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