Phonon-Induced Electron-Hole Excitation and ac Conductance in Molecular Junction
We investigate the linear ac conductance of molecular junctions under a fixed dc bias voltage in the presence of an interaction between a transporting electron and a single local phonon in a molecule with energy ... The electron-phonon interaction is treated by the perturbation expansion. The ac con...
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| Veröffentlicht in: | Journal of the Physical Society of Japan 2016-04, Vol.85 (4), p.1-1 |
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| container_title | Journal of the Physical Society of Japan |
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| creator | Ueda, Akiko Utsumi, Yasuhiro Imamura, Hiroshi Tokura, Yasuhiro |
| description | We investigate the linear ac conductance of molecular junctions under a fixed dc bias voltage in the presence of an interaction between a transporting electron and a single local phonon in a molecule with energy ... The electron-phonon interaction is treated by the perturbation expansion. The ac conductance as a function of the ac frequency ... decreases or increases compared with the noninteracting case depending on the magnitude of the dc bias voltage. Furthermore, a dip emerges at ... The dip originates from the modification of electron-hole excitation by the ac field, which cannot be obtained by treating the phonon in the linear regime of a classical forced oscillation. (ProQuest: ... denotes formulae/symbols omitted.) |
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The electron-phonon interaction is treated by the perturbation expansion. The ac conductance as a function of the ac frequency ... decreases or increases compared with the noninteracting case depending on the magnitude of the dc bias voltage. Furthermore, a dip emerges at ... The dip originates from the modification of electron-hole excitation by the ac field, which cannot be obtained by treating the phonon in the linear regime of a classical forced oscillation. 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| ispartof | Journal of the Physical Society of Japan, 2016-04, Vol.85 (4), p.1-1 |
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| language | eng |
| recordid | cdi_proquest_miscellaneous_1815987081 |
| source | Alma/SFX Local Collection |
| subjects | Bias Conductance Conductivity Dipping Electric potential Electrons Excitation Molecules Phonons Transporting Voltage |
| title | Phonon-Induced Electron-Hole Excitation and ac Conductance in Molecular Junction |
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