期刊
JOURNAL OF CHEMICAL PHYSICS
卷 136, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3676047
关键词
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资金
- US-Israel Binational Science Foundation [2008282]
- Israel Science Foundation
- Department of Energy
- Hellman Family Foundation
Within a generic model, we discuss the possibility of coherent control of charge fluxes in unbiased molecular junctions. The control is induced by resonances between the Rabi frequency due to a pumping laser field and internal characteristic frequencies of pre-designed molecular donor-bridge-acceptor complexes. Two models are considered: a coherently controlled molecular charge pump and a molecular switch. The study generalizes previous consideration of light induced current [M. Galperin and A. Nitzan, Phys. Rev. Lett. 95, 206802 (2005)] and of a molecular electron pump [R. Volkovich and U. Peskin, Phys. Rev. B 83, 033403 (2011)] and accounts for the coherently driven charge transport in an unbiased molecular junction with symmetric coupling to leads. Numerical examples demonstrate the feasibility of the control mechanism for realistic junctions parameters. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3676047]
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