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相关论文: Electron-Acoustic Phonon Energy Loss Rate in Multi…

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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

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

High-resolution electron energy loss spectroscopy measurements have been carried out on an optimally doped cuprate Bi2Sr2CaCu2O8+{\delta}. The momentum-dependent linewidth and the dispersion of an A1 optical phonon are obtained. Based on…

强关联电子 · 物理学 2015-05-18 Huajun Qin , Junren Shi , Yanwei Cao , Kehui Wu , Jiandi Zhang , E. W. Plummer , J. Wen , Z. J. Xu , G. D. Gu , Jiandong Guo

Expressions for the electron power loss F(T) and mobility {\mu}_p due to acoustic phonon scattering are given in the Bloch-Gr\"uneisen (BG) regime for three- and two- dimensional electron gas in semiconductors and Dirac-fermions. We obtain…

介观与纳米尺度物理 · 物理学 2017-06-22 S. S. Kubakaddi

A systematic analysis of phonon-plasmon coupled excitations in three-dimensional (3D) polar systems is provided through the prism of both raw and integrated electron energy loss spectroscopy (EELS) and phonon spectra in the whole relevant…

强关联电子 · 物理学 2022-09-02 J. Krsnik , O. S. Barišić

State-of-the-art approaches to calculate the electron-phonon and the phonon-electron self-energy are based on a mean-field approximation for the interacting electronic system. This approach introduces an overscreening error which results in…

材料科学 · 物理学 2023-11-17 Fulvio Paleari , Andrea Marini

The recent observation of replica bands in single-layer FeSe/SrTiO$_3$ by angle-resolved photoemission spectroscopy (ARPES) has triggered intense discussions concerning the potential influence of the FeSe electrons coupling with substrate…

材料科学 · 物理学 2018-06-13 Fengmiao Li , George A. Sawatzky

The rate of energy transfer between electrons and phonons is investigated by a first principles framework for electron temperatures up to $T_e=50000$ K while considering the lattice at ground state. Two typical but differently complex…

其他凝聚态物理 · 物理学 2022-03-08 Jia Zhang , Rui Qin , Wenjun Zhu , Jan Vorberger

The measured magnetization dynamics of ferromagnetic iron--cobalt Fe$_{1-x}$Co$_x$ alloys show a strong dependence on the alloy composition, especially near $x=0.25$. Here, we calculate from first principles the electron-phonon coupling…

材料科学 · 物理学 2024-10-21 Kevin Moseni , Richard B Wilson , Sinisa Coh

The electron-phonon coupling and the corresponding energy exchange was investigated experimentally and by ab initio theory in non-equilibrium states of the free-electron metal aluminium. The temporal evolution of the atomic mean squared…

材料科学 · 物理学 2016-04-11 Lutz Waldecker , Roman Bertoni , Jan Vorberger , Ralph Ernstorfer

We investigate the excitation of phonons in photoexcited antimony and demonstrate that the entire electron-lattice interactions, in particular coherent and incoherent electron-phonon coupling, can be probed simultaneously. Using femtosecond…

Electron-phonon coupling, being one of the most important parameters governing the material evolution after ultrafast energy deposition, yet remains the most unexplored one. In this work, we applied the dynamical coupling approach to…

材料科学 · 物理学 2020-08-05 N. Medvedev , I. Milov

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

A description of electron-phonon coupling at a defect or impurity is essential to characterizing and harnessing its functionality for a particular application. Electron-phonon coupling limits the amount of useful light produced by a…

材料科学 · 物理学 2026-04-21 Mark E. Turiansky , John L. Lyons

We demonstrate significant modification of the electron-phonon energy loss rate in a many-valley semiconductor system due to lattice mismatch induced strain. We show that the thermal conductance from the electron system to the phonon bath…

Electron--phonon (e--ph) coupling governs electrical resistivity, hot-carrier cooling, and critically, thermal transport in solids. Recent first-principles advances now predict e--ph limited thermal conductivity from d-band metals and…

材料科学 · 物理学 2025-11-21 Sina Kazemian , Giovanni Fanchini

We investigate electron charge decoherence in a laterally-coupled single-electron semiconductor double quantum dot through electron-phonon interaction. We analytically and numerically evaluate the relaxation and dephasing rates due to…

介观与纳米尺度物理 · 物理学 2009-11-11 V. N. Stavrou , Xuedong Hu

We applied Time-Resolved Two-Photon Photoemission spectroscopy to probe the electron- phonon (e-ph) coupling strength in double-wall carbon nanotubes. The e-ph energy transfer rate G(Te,Tl) from the electronic system to the lattice depends…

材料科学 · 物理学 2013-08-07 Ioannis Chatzakis

Electron relaxation in quantum dots is studied theoretically in polar semiconductor materials, with an emphasis put on the phonon-bottleneck problem and electron-LO-phonon coupling. The theory is based on multiphonon states of the…

凝聚态物理 · 物理学 2007-05-23 K. Kral , Z. Khas

We study the principal aspects of the interaction between acoustic phonons and two-dimensional electrons in quantizing magnetic fields corresponding to even denominator fractions. Using the composite fermion approach we derive the vertex of…

介观与纳米尺度物理 · 物理学 2016-08-31 D. V. Khveshchenko , M. Reizer
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