Abstract
A central aspect of the charge-density-wave (CDW) phase transition is the appearance of the so-called fluctuation effects. In a previous work, we have extensively discussed the influence of the precursor effects on the CDW phase transition [1]. Emphasis was given to the optical fingerprints related to the paraconductivity contribution, which develops in the so-called fluctuation regime below the mean-field critical temperature TMF but above the temperature TCDW where three dimensional long range order develops. The experiments reported in Ref. 1 give clear evidence for important deviations from conventional metallic behaviour between TMF and TCDW. The collective nature of the conductivity was established, while its frequency dependence along the chains suggests the presence of novel features such as a finite conductivity and a “quasi-pinned” response [1]. Furthermore, a pseudogap-like excitation was also clearly identified [1].
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© 1996 Plenum Press, New York
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Degiorgi, L. et al. (1996). Thermal Lattice Fluctuations in Quasi One-Dimensional Conductors. In: Schlenker, C., Dumas, J., Greenblatt, M., van Smaalen, S. (eds) Physics and Chemistry of Low-Dimensional Inorganic Conductors. NATO ASI Series, vol 354. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1149-2_21
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DOI: https://doi.org/10.1007/978-1-4613-1149-2_21
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