Hierarchical Random Telegraph Signals in nano-junctions with Coulomb correlations
Strongly Correlated Electrons
2007-05-23 v2 Mesoscale and Nanoscale Physics
Abstract
We propose a microscopic hamiltonian together with a master equation description to model stochastic hierarchical Random Telegraph Signal (RTS) or Pop-corn noise in nano-junctions. The microscopic model incorporates the crucial Coulomb correlations due to the trapped charges inside the junction or at the metal-oxide interface. The exact solution of the microscopic model is based on a generalization of the Nozieres-De Dominicis method devised to treat the problem of the edge singularity in the X-ray absorption and emission spectra of metals. In the master equation description, the experimentally accessible transition rates are expressed in terms of the exact multi-channel Scattering matrix of the microscopic hamiltonian.
Keywords
Cite
@article{arxiv.cond-mat/0202395,
title = {Hierarchical Random Telegraph Signals in nano-junctions with Coulomb correlations},
author = {P. -A. Bares and B. Braunecker},
journal= {arXiv preprint arXiv:cond-mat/0202395},
year = {2007}
}