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

S. -L. Drechsler; H. Rosner; G. Paasch; J. Malek; S. V. Shulga; H. Eschrig

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

S. -L. Drechsler·H. Rosner·G. Paasch·J. Malek·S. V. Shulga·H. Eschrig

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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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S. -L. Drechsler, H. Rosner, G. Paasch, J. Malek, S. V. Shulga, H. Eschrig. 2002-10-23. Analysis of possible field-induced superconductivity in anthracene, other polyacenes, and C60. https://arxiv.org/abs/cond-mat/0210522

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