The electrical conductivity of Li‐doped Cr 2 O 3 was investigated as a function of PO 2 , temperature, and dopant content. Results show that the electrical conductivity remains almost unchanged with decreasing P O 2 in the high‐P O 2 region but decreases rapidly at low P O 2 . A second phase was found in samples which contained more than 0.85 mol% Li. The results are explained by a model in which the concentration of charge carriers is dependent on the acceptor dopant and oxygen vacancy concentration.
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Huang et al. (1984) studied this question.
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