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相关论文: Nonequilibrium resonant spectroscopy of molecular …

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We consider the nonequilibrium quantum vibrations of a molecule clamped between two macroscopic leads in a current-carrying state at finite voltages. Our approach is based on the nonequilibrium Green function technique and the…

介观与纳米尺度物理 · 物理学 2007-05-23 D. A. Ryndyk , M. Hartung , G. Cuniberti

We consider resonant transport through a molecular quantum dot coupled to a local vibration mode. Applying the non-equilibrium Green function technique in the polaron representation, we develop a non-perturbative scheme to calculate the…

介观与纳米尺度物理 · 物理学 2009-11-13 Alex Zazunov , Thierry Martin

The role of multimode vibrational dynamics in electron transport through single molecule junctions is investigated. The study is based on a generic model, which describes charge transport through a single molecule that is attached to metal…

介观与纳米尺度物理 · 物理学 2010-10-26 R. Härtle , C. Benesch , M. Thoss

We consider the interaction between electrons and molecular vibrations in the context of electronic transport in nanoscale devices. We present a method based on non-equilibrium Green's functions to calculate both equilibrium and…

介观与纳米尺度物理 · 物理学 2010-03-16 L. K. Dash , H. Ness , R. W. Godby

Resonant electron transport through a mesoscopic region (quantum dot or single molecule) with electron-phonon interaction is considered at finite voltage. In this case the standard Landauer-B\"uttiker approach cannot be applied. Using the…

介观与纳米尺度物理 · 物理学 2009-11-10 D. A. Ryndyk , J. Keller

We investigate the interplay of quantum interference effects and electronic-vibrational coupling in electron transport through single-molecule junctions, employing a nonequilibrium Green's function approach. Our findings show that inelastic…

介观与纳米尺度物理 · 物理学 2013-02-18 R. Härtle , M. Butzin , M. Thoss

Here we present theoretical studies of the effect of vibronic coupling on nonlinear transport characteristics (current-voltage and conductance-voltage) in molecular electronic devices. Considered device is composed of molecular quantum dot…

介观与纳米尺度物理 · 物理学 2009-11-11 Kamil Walczak

Vibrational nonequilibrium effects in charge transport through single-molecule junctions are investigated. Focusing on molecular bridges with multiple electronic states, it is shown that electronic-vibrational coupling triggers a variety of…

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

We consider a quantum dot, affected by a local vibrational mode and contacted to macroscopic leads, in the non-equilibrium steady-state regime. We apply a variational Lang-Firsov transformation and solve the equations of motion of the Green…

强关联电子 · 物理学 2015-05-28 T. Koch , J. Loos , A. Alvermann , H. Fehske

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 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

By using nonequilibrium Green's functions and the equation of motion method, we formulate a self-consistent field theory for the electron transport through a single molecular junction (SMJ) coupled with a vibrational mode. We show that the…

介观与纳米尺度物理 · 物理学 2015-09-28 Guo-Hui Ding , Bing Dong

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 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

We analyze how functionality could be obtained within single-molecule devices by using a combination of non-equilibrium Green's functions and ab-initio calculations to study the inelastic transport properties of single-molecule junctions.…

介观与纳米尺度物理 · 物理学 2015-06-03 L. K. Dash , H. Ness , M. J. Verstraete , R. W. Godby

We present an application of a new formalism to treat the quantum transport properties of fully interacting nanoscale junctions [Phys. Rev. B {\bf 84}, 235428 (2011)]. We consider a model single-molecule nanojunction in the presence of two…

介观与纳米尺度物理 · 物理学 2012-10-15 H. Ness , L. K. Dash

We study inelastic electron tunneling through a molecular junction using the non-equilibrium Green function (NEGF) formalism. The effect of the mutual influence between the phonon and the electron subsystems on the electron tunneling…

介观与纳米尺度物理 · 物理学 2009-11-10 Michael Galperin , Mark A. Ratner , Abraham Nitzan

Inelastic effects in electron transport through nano-sized devices are addressed with a method based on nonequilibrium Green's functions (NEGF) and perturbation theory to infinite order in the electron-vibration coupling. We discuss the…

介观与纳米尺度物理 · 物理学 2007-05-23 Thomas Frederiksen , Mads Brandbyge , Nicolas Lorente , Antti-Pekka Jauho

We investigate the effects of alternating voltage on nonequilibrium quantum systems with localised phonon modes. Nonequilibrium Green's functions are utilised, with electron-phonon coupling being considered with the $GD$ approximation…

介观与纳米尺度物理 · 物理学 2023-01-25 Thomas D. Honeychurch , Daniel S. Kosov

The interaction between electronic and vibrational degrees of freedom is an important mechanism in nonequilibrium charge transport through molecular nanojunctions. While adiabatic polaron-type coupling has been studied in great detail, new…

介观与纳米尺度物理 · 物理学 2022-06-10 Christoph Kaspar , André Erpenbeck , Jakob Bätge , Christian Schinabeck , Michael Thoss
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