ELECTRON-TRANSPORT AND PHONON COUPLING IN K3C60

The temperature dependence of the resistivity of single-crystal K3C60 below 260 K of Crespi et al. is analyzed utilizing the results of Rama n scattering. It is found that coupling to the two lowest intramolecul ar H(g) modes gives an excellent fit to the temperature variation of t he resistivity with the inclusion of weak lower frequency acoustic or librational scattering. The relative coupling strength of H(g)(1) to H (g)(2) is found to be similar to that estimated from Raman studies of thin films. The weaker low-frequency contribution is found to have a v alue consistent with neutron-scattering studies.