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Currently, molecular tunnel junctions are recognized as important active elements of various nanodevices. This gives a strong motivation to study physical mechanisms controlling electron transport through molecules. Electron motion through…

介观与纳米尺度物理 · 物理学 2013-01-24 Natalya A. Zimbovskaya

We analyze various limits of vibrationally coupled resonant electron transport in single-molecule junctions. Based on a master equation approach, we discuss analytic and numerical results for junctions under a high bias voltage or weak…

介观与纳米尺度物理 · 物理学 2015-03-18 R. Härtle , M. Thoss

Vibrationally coupled electron transport through single-molecule junctions is considered. Reviewing our recent theoretical work, we show that electron-hole pair creation processes represent the key to understand the vibrational excitation…

介观与纳米尺度物理 · 物理学 2013-11-13 R. Härtle , U. Peskin , M. Thoss

We theoretically examine the effect of the coupling of the transport electrons to a vibrational mode of the molecule on the ac linear-response conductance of molecular junctions. Representing the molecule by a single electronic state, we…

介观与纳米尺度物理 · 物理学 2015-05-27 A. Ueda , O. Entin-Wohlman , A. Aharony

On the elementary level, electronic current consists of individual electron tunnelling events that are separated by random time intervals. The waiting time distribution is a probability to observe the electron transfer in the detector…

介观与纳米尺度物理 · 物理学 2017-02-21 Daniel S. Kosov

Vibronic effects in resonant electron transport through single-molecule junctions are analyzed. The study is based on generic models for molecular junctions, which include electronic states on the molecular bridge that are vibrationally…

介观与纳米尺度物理 · 物理学 2011-03-15 R. Härtle , M. Thoss

We investigate the role of electronic-vibrational coupling in resonant electron transport through single-molecule junctions, taking into account that the corresponding coupling strengths may depend on the charge and excitation state of the…

介观与纳米尺度物理 · 物理学 2016-03-23 Andre Erpenbeck , Rainer Härtle , Michel Bockstedte , Michael Thoss

The linear conductance of a molecular conductor oscillating between two metallic leads is investigated numerically both for Hubbard interacting and noninteracting electrons. The molecule-leads tunneling barriers depend on the molecule…

介观与纳米尺度物理 · 物理学 2009-11-11 K. A. Al-Hassanieh , C. A. Büsser , G. B. Martins , E. Dagotto

By using a propagation scheme for current matrices and an auxiliary mode expansion method, we investigate the transient dynamics of a single molecular junction coupled with a vibrational mode. Our approach is based on the Anderson-Holstein…

介观与纳米尺度物理 · 物理学 2016-02-17 Guo-Hui Ding , Bo Xiong , Bing Dong

We study the electronic transport in a molecular junction in which each site is coupled to a local phonon bath using the non-equilibrium Green's function method. We observe the length period of the oscillatory conductance in odd-numbered…

强关联电子 · 物理学 2011-08-12 Ya-Lin Lo , Shih-Jye Sun , Ying-Jer Kao

The influence of vibrational motion on electron conduction through single molecules bound to metal electrodes is investigated employing first-principles electronic-structure calculations and projection-operator Green's function methods.…

介观与纳米尺度物理 · 物理学 2009-11-11 C. Benesch , M. Thoss , W. Domcke , M. Cizek

The influence of multiple vibrational modes on current fluctuations in electron transport through single-molecule junctions is investigated. Our analysis is based on a generic model of a molecular junction, which comprises a single…

介观与纳米尺度物理 · 物理学 2014-09-26 C. Schinabeck , R. Härtle , H. B. Weber , M. Thoss

Vibrationally inelastic electron transport through a flexible molecular junction is investigated. The study is based on a mechanistic model for a biphenyl molecule between two metal electrodes. Employing methods from electron-molecule…

介观与纳米尺度物理 · 物理学 2023-07-26 Martin Cizek , Michael Thoss , Wolfgang Domcke

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…

介观与纳米尺度物理 · 物理学 2017-02-01 A. Ueda , Y. Utsumi , Y. Tokura , O. Entin-Wohlman , A. Aharony

Using a model comprising a 2-level bridge connecting free electron reservoirs we show that coupling of a molecular bridge to electron-hole excitations in the leads can markedly effect the source-drain current through a molecular junction.In…

介观与纳米尺度物理 · 物理学 2007-05-23 Michael Galperin , Abraham Nitzan , Mark A. Ratner

We propose a mechanism which allows one to control the transmission of single electrons through a molecular junction. The principle utilizes the emergence of transmission sidebands when molecular vibrational modes are coupled to the…

介观与纳米尺度物理 · 物理学 2010-03-26 Thomas Olsen , Jakob Schiøtz

We theoretically analyzed inelastic effects in the electron transport through molecular junctions originating from electron-vibron interactions. The molecular bridge was simulated by a periodic chain of identical interacting hydrogen-like…

材料科学 · 物理学 2010-01-03 Natalya A. Zimbovskaya , Maija M. Kuklja

The multilayer multiconfiguration time-dependent Hartree theory within second quantization representation of the Fock space is applied to study correlated electron transport in models of single-molecule junctions. Extending previous work,…

介观与纳米尺度物理 · 物理学 2015-06-12 Haobin Wang , Michael Thoss

The linear thermoelectric properties of molecular junctions are theoretically studied close to room temperature within a model including electron-electron and electron-vibration interactions on the molecule. A nonequilibrium adiabatic…

介观与纳米尺度物理 · 物理学 2015-11-26 C. A. Perroni , D. Ninno , V. Cataudella

Vibrationally inelastic electron transport through a molecular bridge that is connected to two leads is investigated. The study is based on a generic model of vibrational excitation in resonant transmission of electrons through a molecular…

介观与纳米尺度物理 · 物理学 2009-11-10 Martin Cizek , Michael Thoss , Wolfgang Domcke
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