Abstract
We consider thermodynamic and transport properties of a long granular array with strongly connected grains (intergrain conductance ). We find that the system’s conductance and differential capacitance exhibits activated behavior, . The gap represents the energy needed to create a long single-electron charge soliton propagating through the array. This scale is parametrically larger than the energy at which conventional perturbation theory breaks down.
- Received 17 July 2003
DOI:https://doi.org/10.1103/PhysRevLett.92.026801
©2004 American Physical Society