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Analysis of possible field-induced superconductivity in anthracene, other polyacenes, and C60

2002/10/23 by S. -L. Drechsler, S.‐L. Drechsler, H. Rösner +12
Chemistry · Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Fullerene Chemistry and Applications #Graphene research and applications #Molecular Junctions and Nanostructures #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.cond-mat/0210522

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)

arxiv created 2002/10/23 · openalex publication_date 2002/10/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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.

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