Time-correlated soliton tunneling in charge and spin density waves
We consider a model in which an electric field induces quantum nucleation of kink-antikink pairs in a pinned charge or spin density wave. Pair nucleation events, prevented by Coulomb blockade below a pair creation threshold, become correlated in time above threshold. The model provides a natural explanation for the observed (i) small density wave polarization below threshold in NbSe (3), (ii) narrow band noise, (iii) coherent oscillations, and (iv) mode-locking at high drift frequencies.
Miller
JH
Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, Texas 77204-5506, USA.
Ordonez
C
Prodan
E