Single-electron soliton avalanches in tunnel junction arrays

Abstract

Numerical modeling of correlated single-electron tunneling in uniform 2D arrays of small conducting islands separated by tunnel junctions shows the possiblility of soliton-antisoliton avalanches. Though the time duration of any avalanche, and the total charge $\Delta Q=ne$ transferred across the array during the avalanche, are always finite, in arrays with length $N$ larger than certain critical value $N_c$ and large width $M\gg f(N)$, the avalanche magnitude $n$ may be exponentially large, resulting in particular in a giant increase of shot noise. Thermal fluctuations and disorder gradually suppress the avalanche effect.

4 pages (including 5 figures)

References in corpus (1)

• Shot noise suppression at 1D hopping

Cited by in corpus (4)

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