ABSTRACT
The high-temperature measurements (T > 50 K) show an excess thermo electric power with respect to what is expected for diffusion. As for other GICs [24], this excess thermoelectric power is attributed to a phonon-drag contribu tion for fluorine-GICs [38]. As is the case for the electrical resistivity, weaklocalization and carrier-carrier interaction should give rise to a logarithmic cor rection to the diffusion thermopower in the two-dimensional limit. These effects are expected to be more pronounced for the fluorine compounds than for other GICs, since these logarithmic corrections to the electrical resistivity are much larger in the temperature range investigated. These phenomena have not yet been verified in fluorine-GICs because of lack of experimental resolution [38].
