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相关论文: Current-induced nonequilibrium vibrations in singl…

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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

We develop a theoretical model for polarization-selective phonon pumping induced by magnon-phonon coupling in a ferromagnetic/non-magnetic acoustic bilayer structure, focusing on the effects arising from a misalignment between the magnetic…

We study the impact of phonon anharmonicity on the electronic dynamics of soft materials using a nonperturbative quantum-classical approach. The method is applied to a one-dimensional model of doped organic semiconductors with low-frequency…

材料科学 · 物理学 2025-09-24 Jonathan H. Fetherolf , Petra Shih , Timothy C. Berkelbach

Experiments studying vibrational effects on electronic transport through single molecules have observed several seemingly inconsistent behaviors, ranging from up to 30 harmonics of a vibrational frequency in one experiment, to an absence of…

介观与纳米尺度物理 · 物理学 2007-05-23 Vivek Aji , J. E. Moore , C. M. Varma

We consider transport through a vibrating molecular quantum dot contacted to macroscopic leads acting as charge reservoirs. In the equilibrium and nonequilibrium regime, we study the formation of a polaron-like transient state at the…

强关联电子 · 物理学 2015-06-04 T. Koch , H. Fehske , J. Loos

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 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 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

We calculate the current-voltage characteristic of metallic nanotubes at high bias voltage showing that a bottleneck exists for short nanotubes in contrast to large ones. We attribute this to a redistribution of lower-lying acoustic phonons…

介观与纳米尺度物理 · 物理学 2013-05-29 Juergen Dietel , Hagen Kleinert

We study the full-counting statistics of charges transmitted through a single-level quantum dot weakly coupled to a local Einstein phonon which causes fluctuations in the dot energy. An analytic expression for the cumulant generating…

介观与纳米尺度物理 · 物理学 2013-03-12 Y. Utsumi , O. Entin-Wohlman , A. Ueda , A. Aharony

We investigate the effects of phonon scattering on the electronic current noise through nanojunctions using the non-equilibrium Green's functions formalism extended to include the counting field. In the case of weak electron-phonon coupling…

介观与纳米尺度物理 · 物理学 2009-09-28 Federica Haupt , Tomas Novotny , Wolfgang Belzig

We study transport between Quantum Hall (QH) edge states at filling factor $\nu = 1$ in the presence of electron-acoustic-phonon coupling. Performing a Bogoliubov-Valatin (BV) trasformation the low-energy spectrum of interacting…

介观与纳米尺度物理 · 物理学 2019-10-22 Edvin G. Idrisov

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

We employ the functional renormalization group to study the effects of phonon-assisted tunneling on the nonequilibrium steady-state transport through a single level molecular quantum dot coupled to electronic leads. Within the framework of…

强关联电子 · 物理学 2018-12-18 A. Khedri , T. A. Costi , V. Meden

We expand iterative numerically-exact influence functional path-integral tools and present a method capable of following the nonequilibrium time evolution of subsystems coupled to multiple bosonic and fermionic reservoirs simultaneously.…

介观与纳米尺度物理 · 物理学 2015-06-15 Lena Simine , Dvira Segal

In this paper we investigate the spin-current and its shot-noise spectrum in a single-molecule quantum dot coupled with a local phonon mode. We pay special attention on the effect of phonon on the quantum transport property. The…

介观与纳米尺度物理 · 物理学 2009-11-11 Hui Yu , J. -Q. Liang

We employ the time-dependent non-crossing approximation to investigate the joint effect of strong electron-electron and electron-phonon interaction on the instantaneous conductance of a single molecule transistor which is abruply moved into…

强关联电子 · 物理学 2010-10-19 Ali Goker

We study inelastic effects on the electronic current noise in molecular junctions, due to the coupling between transport electrons and vibrational degrees of freedom. Using a full counting statistics approach based on the generalized…

介观与纳米尺度物理 · 物理学 2010-10-27 Federica Haupt , Tomas Novotny , Wolfgang Belzig

Electron transport in periodic quantum dot arrays in the presence of interactions with phonons was investigated using the formalism of nonequilibrium Green's functions. The self-consistent Born approximation was used to model the…

介观与纳米尺度物理 · 物理学 2009-11-13 Nenad Vukmirović , Zoran Ikonić , Dragan Indjin , Paul Harrison

A model with Holstein-like electron-phonon coupling is studied in the limit of adiabatic phonons. The phonon distribution is anharmonic with two degenerate maxima. This model can be related to fermions in a correlated binary alloy and…

强关联电子 · 物理学 2007-05-23 K. Ziegler , D. Schneider