期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 17, 页码 3859-3862出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.3859
关键词
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Charge can be pumped through a tiny gated portal from a reservoir at low electrochemical potential to one at the same or higher electrochemical potential by cyclically modulating the portal and gate energies. A theoretically and experimentally well established mechanism is Thouless adiabatic pumping, achieved by a precisely timed out-crf-phase modulation of at least two parameters of the system. Here we show that stochastic modulation between two configurations of gate and portal energies san drive efficient pumping by a different, nonadiabatic, mechanism that may provide a basis for chemically driven electron pumping through a molecular wire.
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