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AC transport and full-counting statistics of molecular junctions in the weak electron-vibration coupling regime
http://hdl.handle.net/2241/00146036
bb42f65e-d8a7-4c53-892c-15e2198af21d
名前 / ファイル | ライセンス | Actions | |
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item type | Journal Article(1) | |||||
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公開日 | 2017-05-08 | |||||
タイトル | ||||||
タイトル | AC transport and full-counting statistics of molecular junctions in the weak electron-vibration coupling regime | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
タイプ | journal article | |||||
著者 |
Ueda, A.
× Ueda, A.× Utsumi, Y.× Tokura, Y.× Entin-Wohlman, O.× Aharony, A. |
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著者別名 |
植田, 暁子
× 植田, 暁子× 都倉, 康弘 |
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抄録 | ||||||
内容記述 | The coupling of the charge carriers passing through a molecule bridging two bulky conductors with local vibrational modes of the molecule gives rise to distinct features in the electronic transport properties on one hand and to nonequilibrium features in the vibrations’ properties, e.g., their population, on the other. Here we explore theoretically a generic model for a molecular junction biased by an arbitrary dc voltage in the weak-coupling regime. We succinctly summarize parts of our past work related to the signature of the electron-vibration interaction on the full-counting statistics of the current fluctuations (i.e., the cumulant generating-function of the current correlations). In addition, we provide a novel account of the response to an ac field exerted on the junction (on top of the dc bias voltage); in particular, we study the nonequilibrium distribution and the displacement fluctuations of the vibrational modes. Remarkably, we find a behavior pattern that cannot be accounted for by classical forced oscillations. The calculations use the technique of nonequilibrium Green’s functions and treat the electron-vibration coupling in perturbation theory, within the random-phase approximation when required. | |||||
書誌情報 |
The journal of chemical physics 巻 146, 号 9, p. 092313, 発行日 2017-03 |
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ISSN | ||||||
収録物識別子 | 0021-9606 | |||||
DOI | ||||||
関連識別子 | ||||||
関連識別子 | 10.1063/1.4973707 | |||||
権利 | ||||||
権利情報 | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. | |||||
権利 | ||||||
権利情報 | The following article appeared in J. Chem. Phys. 146, 092313 (2017) and may be found at http://dx.doi.org/10.1063/1.4973707. | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版者 | ||||||
出版者 | American Institute of Physics |