Resistance noise measurements show that CDW critical fluctuations in (TaSe4)2I are slow, long-range, and non-Gaussian over |ε| ≲ 0.1, with a mean-field to fluctuation crossover below |ε| ≲ 0.02 yielding anomalously low exponents.
Hooge, 1/f noise sources, IEEE Transactions on Elec- tron Devices41, 1926 (1994)
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Exceptionally Slow, Long Range, and Non-Gaussian Critical Fluctuations Dominate the Charge Density Wave Transition
Resistance noise measurements show that CDW critical fluctuations in (TaSe4)2I are slow, long-range, and non-Gaussian over |ε| ≲ 0.1, with a mean-field to fluctuation crossover below |ε| ≲ 0.02 yielding anomalously low exponents.