Geometrically Induced Multiple Coulomb Blockade Gaps

Details Geometrically Induced Multiple Coulomb Blockade Gaps Geometrically Induced Multiple Coulomb Blockade Gaps

1998-06-27

arxiv.org/abs/cond-mat/9806338v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 Pages (two-columns), 4 Figures, to be published in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.80.5774

We have theoretically investigated the transport properties of a ring-shaped array of small tunnel junctions, which is weakly coupled to the drain electrode. We have found that the long range interaction together with the semi-isolation of the array bring about the formation of stable standing configurations of electrons. The stable configurations break up during each transition from odd to even number of trapped electrons, leading to multiple Coulomb blockade gaps in the the $I-V$ characteristics of the system.

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