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相关论文: Electron-phonon interaction and coupled phonon--pl…

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We treat resonant Raman scattering via the multiphonon exciton transitions in cylindrical quantum dots with a parabolic confinement in the lateral direction and with a finite rectangular interface-barrier confinement in the axial direction.…

介观与纳米尺度物理 · 物理学 2012-05-09 S. N. Klimin , V. M. Fomin , J. T. Devreese , J. -P. Leburton

Spectral distribution functions of electron-phonon interaction $\alpha^2F(\omega )$ obtained by ab initio linear--response calculations are used to describe various superconducting and transport properties in a number of elemental metals…

凝聚态物理 · 物理学 2009-10-28 S. Y. Savrasov , D. Y. Savrasov

The distribution function of electrons and phonons interacting with electrons in semiconductors and semimetals in high electric and quantizing magnetic fields as a result of the solution of the coupled system of equations for the density…

凝聚态物理 · 物理学 2007-05-23 T. M. Gassym

Electron-phonon coupling is a key interaction that governs diverse physical processes such as carrier transport, superconductivity, and optical absorption. Calculating such interactions from first-principles with methods beyond…

材料科学 · 物理学 2025-08-21 Aleksandr Poliukhin , Nicola Colonna , Francesco Libbi , Samuel Poncé , Nicola Marzari

Electron and phonon correlations in systems of one-dimensional electrons coupled to phonons are studied at low temperatures by emphasizing on the effect of electron-phonon backward scattering. It is found that the $2k_F$-wave components of…

强关联电子 · 物理学 2009-11-13 Leiming Chen

We examine the effects of electron-phonon interaction on the dynamics of the charge carriers doped in two-dimensional (2D) Heisenberg antiferromagnet. The $t$-$J$ model Hamiltonian with a Fr\"ohlich term which couples the holes to a…

凝聚态物理 · 物理学 2009-10-28 B. Kyung , S. I. Mukhin , V. N. Kostur , R. A. Ferrell

The role of the electron-phonon interaction in the Holstein-Hubbard model is investigated in the metallic phase close to the Mott transition and in the insulating Mott phase. The model is studied by means of a variational slave boson…

强关联电子 · 物理学 2007-05-23 C. A. Perroni , V. Cataudella , G. De Filippis , V. Marigliano Ramaglia

We investigate the scattering of an electron by phonons in a small structure between two one-dimensional tight-binding leads. This model mimics the quantum electron transport through atomic wires or molecular junctions coupled to metallic…

强关联电子 · 物理学 2017-02-27 C. Brockt , E. Jeckelmann

A microscopic theory is used to study the optical properties of semiconductor quantum dots. The dephasing of a coherent excitation and line-shifts of the interband transitions due to carrier-carrier Coulomb interaction and carrier-phonon…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Lorke , T. R. Nielsen , J. Seebeck , P. Gartner , F. Jahnke

Dynamical mean-field theory computations of the electron self energy of the Hubbard-Holstein model as a function of electron-phonon and electron-electron interactions are analyzed to gain insight into the dependence of electron-phonon…

强关联电子 · 物理学 2025-05-14 Jennifer Coulter , Andrew J. Millis

The effect of electron-phonon interactions in the conductance through metallic atomic wires is theoretically analyzed. The proposed model allows to consider an atomic size region electrically and mechanically coupled to bulk electrodes. We…

介观与纳米尺度物理 · 物理学 2009-11-11 L. de la Vega , A. Martin-Rodero , N. Agrait , A. Levy Yeyati

Understanding of the energy exchange between electrons and phonons in metals is important for micro- and nano-manufacturing and system design. The electron-phonon (e-ph) coupling constant is to describe such exchange strength, yet its…

介观与纳米尺度物理 · 物理学 2021-03-17 Wuli Miao , Moran Wang

We discuss the role of electron-electron and electron-phonon correlations in current flow in the Coulomb Blockade regime, focusing specifically on nontrivial signatures arising from the break-down of mean-field theory. By solving transport…

介观与纳米尺度物理 · 物理学 2015-05-13 B. Muralidharan , L. Siddiqui , A. W. Ghosh

We investigate the interplay between the electron-electron and the electron-phonon interaction in the Hubbard-Holstein model. We implement the flow-equation method to investigate within this model the effect of correlation on the…

强关联电子 · 物理学 2009-11-11 G. Aprea , C. Di Castro , M. Grilli , J. Lorenzana

The electron-phonon interaction in monolayer graphene is investigated by using density functional perturbation theory. The results indicate that the electron-phonon interaction strength is of comparable magnitude for all four in-plane…

介观与纳米尺度物理 · 物理学 2015-05-14 K. M. Borysenko , J. T. Mullen , E. A. Barry , S. Paul , Y. G. Semenov , J. M. Zavada , M. Buongiorno Nardelli , K. W. Kim

To investigate the possibility whether electron-phonon coupling can enhance orbital fluctuations in iron-based superconductors, we develop an ab initio method to construct the effective low-energy models including the phonon-related terms.…

超导电性 · 物理学 2014-01-20 Yusuke Nomura , Kazuma Nakamura , Ryotaro Arita

We investigate the effect of tuning the phonon energy on the correlation effects in models of electron-phonon interactions using DMFT. In the regime where itinerant electrons, instantaneous electron-phonon driven correlations and static…

强关联电子 · 物理学 2015-05-13 J. P. Hague , N. d'Ambrumenil

We formulate and apply a theory of electron-phonon interactions for the surface state of a strong topological insulator. Phonons are modelled using an isotropic elastic continuum theory with stress-free boundary conditions and interact with…

介观与纳米尺度物理 · 物理学 2011-07-01 Sébastien Giraud , Reinhold Egger

We calculate the electron-phonon scattering and binding in semiconducting carbon nanotubes, within a tight binding model. The mobility is derived using a multi-band Boltzmann treatment. At high fields, the dominant scattering is inter-band…

材料科学 · 物理学 2009-11-10 Vasili Perebeinos , J. Tersoff , Phaedon Avouris

Density functional perturbation theory is used to analyze electron-phonon interaction in bilayer graphene. The results show that phonon scattering in bilayer graphene bears more resemblance with bulk graphite than monolayer graphene. In…

介观与纳米尺度物理 · 物理学 2010-11-29 K. M. Borysenko , J. T. Mullen , X. Li , Y. G. Semenov , J. M. Zavada , M. Buongiorno Nardelli , K. W. Kim