Electrical conductivity of slightly reduced rutile between 2° and 370°K

Abstract

The electrical resistivity and the Hall coefficient of slightly reduced rutile crystals were measured in the temperature range between about 2 °K and 370 °K. The time of reduction treatments between 900 °C and 1300 °C was usually as long as 300 hrs, which assures the homogeneous reduction of crystals, The conduction mechanisms in three temperature ranges, i. e. 1. 9∼3°K, 3∼100°K and 100∼250°K, were discussed in terms of lattice defects evidenced by ESR studies.