English
Related papers

Related papers: Next-to-Leading Order Ab Initio Electron-Phonon Sc…

200 papers

We study the negative correction to the quantized value $2e^2/h$ of the conductance of a quantum point contact due to the backscattering of electrons by acoustic phonons. The correction shows activated temperature dependence and also gives…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Georg Seelig , K. A. Matveev

We theoretically and numerically present the hybrid phonon modes for the double heterostructure GaAs/AlxGa1-xAs and their interactions with electrons. More specifically, we have calculated the electron capture within a symmetric quantum…

Mesoscale and Nanoscale Physics · Physics 2009-09-07 V. N. Stavrou , G. P. Veropoulos

The effect of the electron-phonon interaction on magnetization relaxation is studied within the framework of first-principles scattering theory for Fe, Co, and Ni by displacing atoms in the scattering region randomly with a thermal…

Materials Science · Physics 2011-09-06 Yi Liu , Anton A. Starikov , Zhe Yuan , Paul J. Kelly

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…

Condensed Matter · Physics 2007-05-23 T. M. Gassym

We determined electronic relaxation times via pump-probe optical spectroscopy using sub-15 fs pulses for the normal state of two different cuprate superconductors.We show that the primary relaxation process is the electron-phonon…

Mono- and multilayer FeSe thin films grown on SrTiO$_\mathrm{3}$ and BiTiO$_\mathrm{3}$ substrates exhibit a greatly enhanced superconductivity over that found in bulk FeSe. A number of proposals have been advanced for the mechanism of this…

Superconductivity · Physics 2016-05-04 Y. Wang , K. Nakatsukasa , L. Rademaker , T. Berlijn , S. Johnston

The sharp forward electron-phonon $(FEP)$ and impurity $(FIS)$ scattering change the normal and superconducting properties significantly. The pseudo-gap like features are present in the density of states for $\omega <\Omega $, where $\Omega…

Superconductivity · Physics 2015-06-25 O. V. Dolgov , O. V. Danylenko , M. L. Kulic , V. Oudovenko

The energy relaxation channels of hot electrons far from thermal equilibrium in a degenerate two-dimensional electron system are investigated in transport experiments in a mesoscopic three-terminal device. We observe a transition from two…

Mesoscale and Nanoscale Physics · Physics 2011-08-05 D. Taubert , C. Tomaras , G. J. Schinner , H. P. Tranitz , W. Wegscheider , S. Kehrein , S. Ludwig

Twisted bilayer graphene (tBLG) has emerged as an exciting platform for novel condensed matter physics. However, electron-phonon ($e$-ph) interactions in tBLG and their effects on electronic transport are not completely understood. Here we…

Materials Science · Physics 2024-03-01 Shiyuan Gao , Jin-Jian Zhou , Yao Luo , Marco Bernardi

The interplay of electron-electron and electron-phonon interactions is studied analytically in the Kondo regime. A Holstein electron-phonon coupling is shown to produce a weakening of the gate voltage dependence of the Kondo temperature and…

Strongly Correlated Electrons · Physics 2007-05-23 C. A. Balseiro , P. S. Cornaglia , D. R. Grempel

Using electrical transport experiments and shot noise thermometry, we investigate electron-phonon heat transfer rate in a suspended bilayer graphene. Contrary to monolayer graphene with heat flow via three-body supercollision scattering, we…

Mesoscale and Nanoscale Physics · Physics 2014-09-23 Antti Laitinen , Manohar Kumar , Mika Oksanen , Bernard Plaçais , Pauli Virtanen , Pertti Hakonen

Radiative corrections (RC) to the Compton scattering cross section are calculated in the leading and next-to leading logarithmic approximation to the case of colliding high energy photon-electron beams. RC to the double Compton scattering…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. N. Ilyichev , E. A. Kuraev , V. Bytev , Yu. P. Peresun'ko

In this study a method for calculation of the electron-phonon scattering rate in semiconductor structures with one-dimensional electron gas is developed. The energy uncertainty of electrons is taken into account.

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Dmitry Pozdnyakov , Vadim Galenchik

This paper presents the calculation results of electron-phonon interactions within the LuH$_2$, LuH$_3$, and LuN systems under 0 GPa and 10 GPa via density functional theory at the GGA-PBE level. The purpose of this work is to provide…

Superconductivity · Physics 2023-04-17 Tenglong Lu , Sheng Meng , Miao Liu

First-principles calculations combining density functional theory and many-body perturbation theory can provide microscopic insight into the dynamics of electrons and phonons in materials. We review this theoretical and computational…

Materials Science · Physics 2016-11-23 Marco Bernardi

We investigate the interplay of the electron-phonon and the spin fluctuation interaction for the superconducting state of YBa$_2$Cu$_3$O$_{7}$. The spin fluctuations are described within the nearly antiferromagnetic Fermi liquid theory,…

Superconductivity · Physics 2009-10-31 T. S. Nunner , J. Schmalian , K. H. Bennemann

We present a first-principles study of the temperature- and density-dependent intrinsic electrical resistivity of graphene. We use density-functional theory and density-functional perturbation theory together with very accurate Wannier…

A canonical quantization procedure is applied to elastic waves interacting with pinned dislocation segments via the Peach-Koehler force. The interaction Hamiltonian, derived from an action principle that classically generates the…

Materials Science · Physics 2019-06-12 Fernando Lund , Bruno Scheihing Hitschfeld

We predict that graphene is a unique system where disorder-assisted scattering (supercollisions) dominates electron-lattice cooling over a wide range of temperatures, up to room temperature. This is so because for momentum-conserving…

Mesoscale and Nanoscale Physics · Physics 2012-09-21 Justin C. W. Song , Michael Y. Reizer , Leonid S. Levitov

The production of photons accompanied by jets in large-Q2 deep inelastic ep scattering is calculated in next-to-leading order. We describe how to consistently include contributions from quark-to-photon fragmentation and give numerical…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Gehrmann-De Ridder , G. Kramer , H. Spiesberger