Abstract
We show that thermoelectric power and conductivity of Qn(TCNQ)2, and many similar salts with â filled bands, can be explained quantitatively for T ≳ 80°K by a model with a gap at the 1/4 filled band level and large Coulomb repulsion U for a second electron on the same site. Susceptibility and its temperature variation are consistent with this model. Calculations show that the gap arises from a Peierls distortion involving only intramolecular phonons.
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© 1979 Springer-Verlag
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Conwell, E.M., Epstein, A.J., Rice, M.J. (1979). Large U model of 1:2 TCNQ salts. In: Bariŝić, S., Bjeliŝ, A., Cooper, J.R., Leontić, B.A. (eds) Quasi One-Dimensional Conductors I. Lecture Notes in Physics, vol 95/1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0052794
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DOI: https://doi.org/10.1007/BFb0052794
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