Analysis of Possible Field-Induced Superconductivity in Anthracene, Other Polyacenes, and C60
We consider electronic structure and superconductivity aspects in field-doped polyacenes (PA) and C60. Within a modified Thomas–Fermi approach for typical experimental values of the surface charge density the injected charge is confined to a monolayer. The electron-phonon coupling constant for internal modes λint is estimated using the work of Devos et al. (Phys. Rev. B58, 8236 (1998)) and the density of states estimated from a 2D-one-band model derived from a full potential LDA band structure calculation for bulk anthracene. The large differences in the reported Tc-values for PA and C60 are ascribed to enhanced empirical Coulomb pseudopotentials μ* for PA.