The Role of Librations in TTF-TCNQ

  • M. Weger


The temperature dependence of the resistivity of TTF-TCNQ has been a mystery for a long time, and received considerable attention since Heeger’s talk in SanDiego early in 1973. The resistivity follows approximately a T2 law ρ11(T,P) = A + B(P) T2 in the temperature region 60 – 300 K. Above 200 K, at ambient pressure, ρ11 is slightly larger, and a fit to T2.3 would be better; also, close to the transition at 52.5 K, up to about 60 K, there are slight upward deviations. However, by and large, this T2 law is followed, and the pressure variation of B is very large. B(P) falls by about a factor of 2 at 4 kbar.1


Golden Rule Molecular Plane Large Thermal Expansion Molecular Organic Crystal Anharmonic Force 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    J.R. Cooper, M. Weger, D. Jerome and S. Etemad, J. Physique Lett. 36, L219 (1975).CrossRefGoogle Scholar
  2. 2.
    C.W. Chu, J.M.E. Harper, T.H. Geballe and R.L. Greene, Phys. Rev. Lett. 31, 1431 (1973).CrossRefGoogle Scholar
  3. 3.
    M. Weger and J. Friedel, J. Physique 38, 241 (1977);Google Scholar
  4. 3a.
    ibid 38, 881 (1977).CrossRefGoogle Scholar
  5. 4.
    H. Gutfreund and M. Weger, Phys. Rev. B16, 1753 (1977).Google Scholar
  6. 5.
    D. Debray et al, J. Physique Lett. 38, 224, (1977).CrossRefGoogle Scholar
  7. 6.
    G. Soda et al, J. Physique 38, 931 (1977).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • M. Weger
    • 1
    • 2
  1. 1.The Hebrew University of JerusalemIsrael
  2. 2.Nuclear Research CenterNegevIsrael

Personalised recommendations