Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
978795 | Physica A: Statistical Mechanics and its Applications | 2006 | 33 Pages |
Abstract
We consider a class of systems where, due to the large mismatch of dielectric constants, the Coulomb interaction is approximately one-dimensional. Examples include ion channels in lipid membranes and water filled nanopores in silicon films. Charge transport across such systems possesses the activation behavior associated with the large electrostatic self-energy of a charge placed inside the channel. We show here that the activation barrier exhibits non-trivial dependence on the salt concentration in the surrounding water solution and on the length and radius of the channel.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
A. Kamenev, J. Zhang, A.I. Larkin, B.I. Shklovskii,