Advertisement

Electronic Properties of a New Radical-Cation Salt, Tetraselenotetracene-Iodide: Evidence for Quasi Metallic Behavior at very Low Temperatures

  • P. Delhaes
  • C. Coulon
  • J. P. Manceau
  • S. Flandrois
  • B. Hilti
  • C. W. Mayer
Part of the Nato Conference Series book series (NATOCS, volume 1)

Abstract

The investigation of nearly one dimensional metals has reached these last years a quite interesting stage of development. Among the new materials which have been discovered, the organic charge transfer complexes (CTC) belonging to the TTF (tetrathiofulvale-nium)-TCNQ (tetracyanoquinodimethane) series present an outstanding feature. However, one of them, only, does not present a metal-insulator transition due to an electronic PEIERLS distortion and shows therefore an appreciable electrical conductivity at very low temperatures: this is the hexamethylene — tetrase-lenofulvalenium HMTSeF-TCNQ (1). Furthermore, under pressure a semi-metallic behavior has been found because of a large increase of the electrical conductivity along the cations and anions chains (2).

Keywords

Charge Transfer Complex Thermal Variation Paramagnetic Susceptibility NATO Advance Study Institute Anion Chain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    A.N. Bloch, D.O. Cowan, K. Bechgaard, R.E. Pyle, R.H. Banks and T.O. Poehler, Physical Review Letters, 34 (25), 1561 (1975).CrossRefGoogle Scholar
  2. (2).
    J.R. Cooper, M. Weger, D. Jerome, G. Lefur, K. Bechgaard, A.N. Bloch and D.O. Cowan, Solid State Comm., 19, 1209 (1976).CrossRefGoogle Scholar
  3. (3).
    B. Hilti and C.W. Mayer, Helvetica Chimica Acta, 61, 501 (1978).CrossRefGoogle Scholar
  4. (4).
    B. Hilti, C.W. Mayer and G. Rihs, Helvetica Chimica Acta, 61, 1462 (1978).CrossRefGoogle Scholar
  5. (5).
    S.P. Zolotukhin, V.F. Kaminskii, A.I. Kotow, R.G. Lyubovskii, M.L. Khidekel, R.P. Shibaeva, I.F. Shchgolev and E.B. Yagubskii, Pisma Zh. Elisp. Theor. Fiz., 25 (10), 480 (1977).Google Scholar
  6. (6).
    H.C. Montgomery, J. Appl. Phys., 42, 7 (1971).Google Scholar
  7. (7).
    R.P. Groff, A. Suna and R.E. Merrifield, Phys. Rev. Letters, 33, 418 (1974).CrossRefGoogle Scholar
  8. (8).
    I.C. Isett and E.A. Perez-Albuerne, Solid State Comm., 21, 433 (1977).CrossRefGoogle Scholar
  9. (9).
    D. Jerome, J. de Physique Lettres, 38, L 489 (1977).CrossRefGoogle Scholar
  10. (10).
    B. Horowitz, H. Guftreund and M. Weger, Phys. Rev. B, 12, 3174 (1975).CrossRefGoogle Scholar
  11. (11).
    P. Delhaes, J.P. Manceau, C. Coulon, S. Flandrois, B. Hilti and C.W. Mayer, (Conference on One-Dimensional Conductors, Dubrovnik, September 1978).Google Scholar
  12. (12).
    D. Jerome and M. Weger, Chemistry and Physics of one-dimensional metals, (Ed. H.J. Keller) NATO Advanced Study Institutes series B, 25, 341 (1977).Google Scholar
  13. (13).
    R.L. Greene and G.B. Street, Chemistry and Physics of one-dimensional metals (Ed. M.J. Keller) NATO Advanced Study Institutes Series B, 25, 167 (1977).Google Scholar

Copyright information

© Plenem Press New York 1979

Authors and Affiliations

  • P. Delhaes
    • 1
  • C. Coulon
    • 1
  • J. P. Manceau
    • 1
  • S. Flandrois
    • 1
  • B. Hilti
    • 2
  • C. W. Mayer
    • 2
  1. 1.Centre de Recherche Paul Pascal CNRSDomaine UniversitaireTalenceFrance
  2. 2.Zentrale Forschungslaboratorien CIBA GEIGI A. G.BaselC. H.

Personalised recommendations