The anomalous growth of resistance fluctuations in orthorhombic TaS<sub>3</sub> below the liquid-nitrogen temperature
V Y Pokrovskii; S V Zaitsev-Zotov; F Y Nad'; V Y Pokrovskii; Centre de Recherches sur les Tres Basses Temp., CNRS, Grenoble, France; S V Zaitsev-Zotov; Centre de Recherches sur les Tres Basses Temp., CNRS, Grenoble, France; F Y Nad'; Centre de Recherches sur les Tres Basses Temp., CNRS, Grenoble, France
Журнал:
Journal of Physics: Condensed Matter
Дата:
1993-12-13
Аннотация:
It is found that, below 80 K, orthorhombic TaS<sub>3</sub> demonstrates spontaneous resistance fluctuations. The spectral density of the fluctuations grows as the temperature decreases. In the temperature range between 50 and 70 K the spectra reveal a mean relaxation time which decreases as the temperature decreases with an activation energy about 1300 K. We conclude that the main source of the resistance fluctuations are thermally assisted jumps of dislocations of the charge-density waves.
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