A quieter state of charge and ultra-low-noise of the collective current in quasi-1D charge-density-wave nanowires.

ABSTRACT: Electronic flicker noise limits phase stability in communication systems, reduces the sensitivity and selectivity of sensors, and degrades coherence in quantum devices. There is a strong need for unconventional materials and strategies for achieving ultra-low-noise performance in nanoscale and quantum electronics. Here, we demonstrate that in nanowires of the quasi-one-dimensional, fully gapped charge-density-wave material (TaSe₄)₂I, low-frequency electronic noise is suppressed below the limit of thermalized charge carriers in passive resistors. When the current is dominated by the sliding Frohlich condensate, the normalized noise spectral density, SI/I2 , decreases linearly with current, I - a striking departure from the constant value of SI/I2 , observed in conventi

SUBMITTER: Ghosh S 

PROVIDER: S-EPMC12774952 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature