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相关论文: Influence of Phonon dimensionality on Electron Ene…

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We study the electron and phonon spectral functions as well as superconductivity for a two dimensional electron gas couped to dipolar phonons via small-momentum transfer scattering. The results reported here are obtained through…

强关联电子 · 物理学 2019-12-11 Zi-Xiang Li , T. P. Devereaux , Dung-Hai Lee

Electron-phonon(e-ph) interaction in Ca2N monolayer, the first electrene material with two-dimensional(2D) electron gas floating in free space, is expected to be very weak and such a character can be used to design weak-scattering transport…

计算物理 · 物理学 2018-12-05 Xiongzhi Zeng , Songtao Zhao , Zhenyu Li , Jinlong Yang

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…

介观与纳米尺度物理 · 物理学 2011-08-05 D. Taubert , C. Tomaras , G. J. Schinner , H. P. Tranitz , W. Wegscheider , S. Kehrein , S. Ludwig

To understand the pressure-induced changes in the electronic structure and the electron-phonon interaction in yttrium, we have studied hexagonal close-packed (hcp) yttrium, stable at ambient pressure and double hexagonal close-packed (dhcp)…

超导电性 · 物理学 2007-05-23 Prabhakar P. Singh

We propose a microscopic theory of interaction of long wave molecular phonons with electrons in fullerides in the presence of disorder. Phonon relaxation rate and frequency renormalization are discussed. Finite electronic bandwidth reduces…

超导电性 · 物理学 2009-10-30 V. L. Aksenov , V. V. Kabanov

The effect of the presence of electron-phonon (e-ph) coupling in the SiC, GeC and SnC hybrids is studied in the framework of the ab initio perturbation theory. The electronic bang gap thermal dependence reveals a normal monotonic decrease…

材料科学 · 物理学 2019-02-13 L. B. Drissi , N. B-J. Kanga , S. Lounis , F. Djeffal , S. Haddad

Using electrical transport experiments and shot noise thermometry, we find strong evidence that "supercollision" scattering processes by flexural modes are the dominant electron-phonon energy transfer mechanism in high-quality, suspended…

介观与纳米尺度物理 · 物理学 2015-11-02 Antti Laitinen , Mika Oksanen , Aurélien Fay , Daniel Cox , Matti Tomi , Pauli Virtanen , Pertti Hakonen

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

We investigate the time dependent thermal relaxation of a two-dimensional electron system in the fractional quantum Hall regime where ballistic phonons are used to heat up the system to a non-equilibrium temperature. The thermal relaxation…

介观与纳米尺度物理 · 物理学 2009-10-31 F. Schulze-Wischeler , U. Zeitler , M. Monka , F. Hohls , R. J. Haug , K. Eberl

The presence of spin-polarized charge carriers in metallic magnets provides a mechanism for spin-lattice interactions mediated by electron-phonon coupling. Here, we present a theory of this mechanism used to estimate its effect on the…

材料科学 · 物理学 2024-08-20 Danis I. Badrtdinov , Mikhail I. Katsnelson , Alexander N. Rudenko

We use the renormalization group method to examine the effect of phonon mediated interaction on d-wave superconductivity, as driven by spin fluctuations in a quasi-one-dimensional electron system. The influence of a tight-binding…

强关联电子 · 物理学 2014-09-15 Hassan Bakrim , Claude Bourbonnais

The effect of the resonance of electron scattering energy difference and phonon energy on the electron-phonon-electron interaction (EPEI) is studied. Results show that the resonance of electron transition energy and phonon energy can…

超导电性 · 物理学 2016-07-11 Jiang-Tao Liu

Using the dielectric continuum (DC) and three-dimensional phonon (3DP) models, energy relaxation of the hot electrons in the quasi-two-dimensional channel of lattice-matched InAlN/AlN/GaN heterostructures is studied theoretically. The…

介观与纳米尺度物理 · 物理学 2015-06-23 Jian-zhong Zhang , Angela Dyson , Brian K. Ridley

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 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…

强关联电子 · 物理学 2007-05-23 C. A. Balseiro , P. S. Cornaglia , D. R. Grempel

We report on the effect of elastic intervalley scattering on the energy transport between electrons and phonons in many-valley semiconductors. We derive a general expression for the electron-phonon energy flow rate at the limit where…

无序系统与神经网络 · 物理学 2015-06-25 M. Prunnila , P. Kivinen , A. Savin , P. Torma , J. Ahopelto

The effects of the electron-phonon interaction on optical excitations can be understood in terms of exciton-phonon coupling, and require a careful treatment in low-dimensional materials with strongly bound excitons or strong electron-hole…

材料科学 · 物理学 2022-02-17 Gabriel Antonius , Steven G. Louie

We theoretically consider temperature and density-dependent electron-phonon interaction induced many-body effects in the two-dimensional (2D) metallic carriers confined on the surface of the 3D topological insulator (e.g. Bi$_2$Se$_3$). We…

介观与纳米尺度物理 · 物理学 2013-08-21 S. Das Sarma , Qiuzi Li

The cooling of two-dimensional electrons in silicon-metal-oxide semiconductor field effect transistors is studied experimentally. Cooling to the lattice is found to be more effective than expected from the bulk electron-phonon coupling in…

介观与纳米尺度物理 · 物理学 2009-11-07 O. Prus , M. Reznikov , U. Sivan , V. Pudalov

Atom scattering is becoming recognized as a sensitive probe of the electron-phonon interaction parameter $\lambda$ at metal and metal-overlayer surfaces. Here, the theory is developed linking $\lambda$ to the thermal attenuation of atom…

超导电性 · 物理学 2020-05-20 G. Benedek , J. R. Manson , S. Miret-Artés