Seebeck Coefficient of Li1+xTi2-xO4

Thermoelectric power of Li 1+ x Ti 2- x O 4 ( x =0, 0.15, 0.20, 0.22 and 0.25) were measured from 90 K to 300 K. Except for that of the metallic sample ( x =0), Seebeck coefficients are proportional to temperature and it suggests a random distribution of localized electronic levels around the Fermi level.