Percolating through networks of random thresholds: Finite temperature electron tunneling in metal nanocrystal arrays

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dc.creatorParthasarathy, Raghuveer
dc.creatorLin, Xiao-Min
dc.creatorElteto, Klara
dc.creatorRosenbaum, T. F.
dc.creatorJaeger, Heinrich M.
dc.date2003-02-18
dc.date2004-03-30
dc.date.accessioned2026-07-07T02:49:42Z
dc.date.available2026-07-07T02:49:42Z
dc.descriptionWe investigate how temperature affects transport through large networks of nonlinear conductances with distributed thresholds. In monolayers of weakly-coupled gold nanocrystals, quenched charge disorder produces a range of local thresholds for the onset of electron tunneling. Our measurements delineate two regimes separated by a cross-over temperature $T^*$. Up to $T^*$ the nonlinear zero-temperature shape of the current-voltage curves survives, but with a threshold voltage for conduction that decreases linearly with temperature. Above $T^*$ the threshold vanishes and the low-bias conductance increases rapidly with temperature. We develop a model that accounts for these findings and predicts $T^*$.
dc.description5 pages including 3 figures; replaced 3/30/04: minor changes; final version
dc.identifierhttps://arxiv.org/abs/cond-mat/0302348
dc.identifierhttp://arxiv.org/abs/cond-mat/0302348
dc.identifierPhys. Rev. Lett. 92, 076801 (2004)
dc.identifierdoi:10.1103/PhysRevLett.92.076801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20901
dc.subjectMesoscale and Nanoscale Physics
dc.titlePercolating through networks of random thresholds: Finite temperature electron tunneling in metal nanocrystal arrays
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