Analysis of possible field-induced superconductivity in anthracene, other polyacenes, and C60
Abstract
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 is estimated using the work of Devos et al. (Phys. Rev. B 58, 8236 (1998)) and the density of states N(0) 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 n-doped PA and C60 are ascribed to enhanced empirical Coulomb pseudopotentials for polyacenes.
Cite
@article{arxiv.cond-mat/0210522,
title = {Analysis of possible field-induced superconductivity in anthracene, other polyacenes, and C60},
author = {S. -L. Drechsler and H. Rosner and G. Paasch and J. Malek and S. V. Shulga and H. Eschrig},
journal= {arXiv preprint arXiv:cond-mat/0210522},
year = {2007}
}
Comments
6pages, 5figures, Slihtly extended version (one figure added) contribution to the Proceedings of 2002 Int. Conf. on Physics and Chemistry of Molecular and Oxide Superconductors, August 13-19, 2002, Hsinchu, Taiwan, R.O.C. (J. Low Temp. Physics, in press)