International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Superconductivity in Organic Materials: A Fascinating Phenomenon

Author Affiliations

  • 1Department of Applied Chemistry, Baba Saheb Bhimrao Ambedkar University, Rae Bareilly Road, Lucknow-226025, INDIA
  • 2Department of Environmental Microbiology, Baba Saheb Bhimrao Ambedkar University, Rae Bareilly Road, Lucknow-226025, INDIA

Res.J.chem.sci., Volume 2, Issue (11), Pages 67-70, November,18 (2012)

Abstract

The organic superconductivity is a very interesting phenomenon. The highly anisotropy and other intriguing properties of organic superconductor (OSC) made them distinct from other superconductors. Due to hybridization, it does not leave any unfilled spots in the conduction and valence bands of organic molecules, as a result of which they normally act as insulator and do not exhibit the property of metals. Recent studies suggest that certain organic substances might be able to display metallic characteristics. It was realized that conduction and valence bands in organic molecules can be made partially filled if planar organic molecules are combined with anions that are nonorganic. In such type of compound organic molecule behave as electron donor and nonorganic molecule serve as electron acceptor. So, there is the formation of charge transfer complex with metal like characteristics. Recently, a number of hole doped fullerenes synthesized which shows superconductivity upto higher critical temperature i.e., 117K. So, replacement of non organic superconductors by these organic one may lead to various advantages accompanied with stability and durability. Further research in this area may lead to higher and higher Tc OSC. The present article reveals the phenomenon of organic superconductivity with its background, classes and applications.

References

  1. Jérome D., Mazaud A. and Ribault M., Superconductivity in a synthetic organic conductor (TMTSF) 2PF6 (+), J. Physique - LETTRES., 41, 95-98 (1980)
  2. Little W.A., Superconductivity at Room Temperature, Sci. Am..,212, 21-27 (1965)
  3. Hackl R. and Hanke W., Towards a better understanding of superconductivity at high transition temperatures, Eur. Phys. J. Special Topics.,188, 3–14 (2010)
  4. Gabovich A.M., Voitenko A.I. and Ausloos M., Chargeand spin-density waves in existing superconductors: competition between Cooper pairing and Peierls or excitonic instabilities, Physics Reports.,367, 583–709 (2002)
  5. Bechagaard K., Jacobsen, Mortensen C.S., Pedersen K. and Thorup N., The Properties of Five Highly Conducting Salts: (TMTSF)2X, X=PF6-, AsF6-, SbF6-,BF4 and NO3-, derived from Tetramethyltetraselenafulvalene (TMTSF), Solid State Commun., 33, 1119-1125 (1980)
  6. Jerome D., Organic superconductivity, Physica B+C., 109(3), 1447–1460 (1982)
  7. Ersan Demiralp and William A. Goddard., Vibrational Analysis and Isotope Shifts of BEDT-TTF Donor for Organic Superconductors., J. Phys. Chem. A., 1022466-2471 (1998)
  8. Senthil Kumar A.P., Karthikeyan P., Prabhu Raja V., Ramu M., Somasundharam S. and Vasudevan V., Empirical Correlation of Various Inclusions on the Effect of Primary and Secondary Parameters for Estimation of Effective Thermal Conductivity (ETC) of Two Phase Materials, Res. J. Recent Sci.,1(1), 22-32 (2012)
  9. Williams J.M., Ferraro J.R., Thorn R.J., Corlson K.D., Geiser U., Wang H.H., Kini A.M. and Whangbo M.H., Organic Superconductors (including Fullerenes); Prentice Hall: Englewood Cliffs, NJ. (1992)
  10. Shukur Majid M., Kadhim F. Al-Sultani and Hassan MohammedN.,Preparation of Alkali Lead Glass and Glass – Ceramic Compositions as Electrical Insulators, Res. J. Chem. Sci.,2(2)28-34 (2012)
  11. Szasz A., Fullerene superconductivity by short-range order instability, Journal Of Superconductivity, 6(2), 99-106 (1993)
  12. Anju S.G., Jyothi K.P., Sindhu Joseph, Suguna Y. and Yesodharan E.P., Ultrasound assisted semiconductor mediated catalytic degradation of organic pollutants in water: Comparative efficacy of ZnO, TiO2 and ZnO-TiO2, Res. J. Recent Sci., 1(ISC-2011), 191-201 (2012)
  13. Senthil Kumar A.P., Karthikeyan P., Selvakumar B. Jagadheeshwaran M., Dinesh J. and Kandasamy, Influence of Density and Concentration on Effective Thermal Conductivity of two Phase Materials using Square Guarded hot plate Apparatus S., Res. J. Recent Sci., 1(8), 42-47 (2012)