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Time-correlated tunneling in charge and spin density waves

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: J. H Miller, Jr., C. Ordonez and E. Prodan

Editorial: Phys. Rev. Lett., 84, p.1555-1558, 2000.


We consider a model in which an electric field induces quantum nucleations of kink-antikink pairs in a pinned charge of 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 NbSe3, ii) narrow band noise, iii) coherent oscillations and iv) mode-locking at high drift frequencies.

Cuvinte cheie: charge and spin density waves