Chapter

Advances in Cryogenic Engineering

Volume 17 of the series Advances in Cryogenic Engineering pp 109-115

Speculations of Superconductivity in Biological and Organic Systems

  • E. H. HalpernAffiliated withNaval Ship Research and Development Center
  • , A. A. WolfAffiliated withNaval Ship Research and Development Center

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Abstract

London [1,2] speculated that superconductivity might exist in certain biological systems and specifically in the aromatic organic long-chain molecules which have conjugated double bonds containing π electrons (itinerant electrons). Utilizing this speculation of London and the BCS theory [3] of coupled electrons, Little [4] postulated the existence of an organic polymer that might be a superconductor at room temperature. Ladik et al.[ 5 ] discuss the possibility of superconductivity in DNA molecules at room temperature and claim that the attractive term in the BCS theory, would be larger than the Coulomb term between coupled electrons (or phonon-electron interaction). Ginzburg [6] discusses the problem of high-temperature superconductivity in terms of exciton mechanisms and describes a thin film sandwich of a metallic superconductor between organic dielectrics. Gamble [7] and McConnell talk about exciton mechanisms for organics and metallics codeposited and as films for enhancement effects of T c