@article{Varshney_Singh_2023, title={Thermoelectric power of metallic Rb3C60: phonon-drag and carrier diffusion contributions}, volume={6}, url={https://oiccpress.com/journal-of-theoretical-and-applied-physics/article/thermoelectric-power-of-metallic-rb3c60-phonon-drag-and-carrier-diffusion-contributions/}, DOI={10.1186/2251-7235-6-37}, abstractNote={AbstractThermoelectric power (S) of Rb3C60 fullerides in the metallic phase is theoretically estimated. We first develop a Hamiltonian model that incorporates the scattering rates within the relaxation time approximation to estimate the phonon-drag thermoelectric power (Sphdrag) incorporating the scattering of phonons with defects, electrons as carriers, grain boundaries, and phonon-phonon interactions. As a next step, Mott expression within parabolic band approximation is used to analyze the electron diffusive thermoelectric power (Scdiff) using Fermi energy as electron parameter, and Scdiff shows a linear temperature dependence. The Sphdrag is nonzero in both normal and superconducting states. Its behavior is determined by competition among the several operating scattering rates for heat carriers and a balance between diffusive carrier and phonon-drag contributions. Acoustic phonons are effectively scattered by various scatterers for the thermoelectric power. S infers a change in slope above transition temperature and becomes almost linear above 70 K.}, number={1}, journal={Journal of Theoretical and Applied Physics}, publisher={OICC Press}, author={Varshney, Dinesh and Singh, Namita}, year={2023}, month={Nov.}, keywords={Phonon drag, RbC, Thermoelectric power, Carrier diffusion, Intermolecular phonon} }