On the nature of filamentary superconductivity in metal-doped hydrocarbon organic materials

D. Hillesheim 1 , K. Gofryk 1 ,  and A. S. Sefat 1
  • 1 Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA


High temperature superconductivity in K-doped 1,2:8,9-dibenzenopentacene (C30H18) has been recently reported [1] with Tc = 33 K, the highest among organic superconductors at ambient pressure. Here we report on our search for superconductivity in K, Ba, and Ca-doped hydrocarbon organic materials. We find that Ba-anthracene (C14H10) and K-Picene (C22H14) show features characteristics of superconducting state, although very weak. The data suggests that Ba-anthracene might be a new organic superconductor with Tc ~35 K.

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