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相关论文: Electron-acoustic phonon field induced tunnel scat…

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Acoustic phonons in piezoelectric materials strongly couple to electrons through a macroscopic electric field. We show that this coupling leads to a momentum-dependent divergence of the Fan-Migdal electron linewidth. We then develop a…

材料科学 · 物理学 2024-09-12 Jae-Mo Lihm , Samuel Poncé , Cheol-Hwan Park

We study the scattering of an electron from a one dimensional inverted Gaussian atomic potential in the presence of strong time periodic electric fields. Using Floquet theory, we construct the Floquet Scattering matrix in the…

原子物理 · 物理学 2009-11-07 Agapi Emmanouilidou , L. E. Reichl

Inspired by the problem of elastic wave scattering on wrinkled interfaces, we studied the scattering of ballistic electrons on a wrinkled potential energy region. The electron transmission coefficient depends on both wrinkle amplitude and…

介观与纳米尺度物理 · 物理学 2016-04-20 T. L. Mitran , G. A. Nemnes , L. Ion , Daniela Dragoman

We present a theoretical study of electron-phonon scattering effects in thin films made of a strong topological insulator. Phonons are modelled by isotropic elastic continuum theory with stress-free boundary conditions, and the interaction…

介观与纳米尺度物理 · 物理学 2012-01-26 Sébastien Giraud , Arijit Kundu , Reinhold Egger

We study coherent backscattering phenomena from single and multiple stacking faults (SFs) in 3C- and 4H-SiC within density functional theory quantum transport calculations. We show that SFs give rise to highly dispersive bands within both…

材料科学 · 物理学 2012-06-29 I. Deretzis , M. Camarda , F. La Via , A. La Magna

We review the theoretical background for obtaining both quantum defects and scattering phase shifts from time-dependent density functional theory. The quantum defect on the negative energy side of the spectrum and the phase shift on the…

其他凝聚态物理 · 物理学 2019-03-27 Meta van Faassen , Kieron Burke

We propose an effective field theory describing the time dependent fluctuations of electrons in conducting systems, generalizing the well known kinetic theory of fluctuations. On several examples, we show its equivalence, (when quantum…

介观与纳米尺度物理 · 物理学 2009-03-22 D. B. Gutman , A. D. Mirlin , Yuval Gefen

Phase shifts for single-channel elastic electron-atom scattering are derived from time-dependent density functional theory. The H$^-$ ion is placed in a spherical box, its discrete spectrum found, and phase shifts deduced. Exact-exchange…

材料科学 · 物理学 2009-11-13 Meta van Faassen , Adam Wasserman , Eberhard Engel , Fan Zhang , Kieron Burke

The recent realization of single electron sources let us envision performing electron quantum optics experiments, where electrons can be viewed as flying qubits propagating in a ballistic conductor. To date, all electron sources operate in…

介观与纳米尺度物理 · 物理学 2018-03-14 D. Christian Glattli , Preden Roulleau

The spectrum of electron-phonon complexes in a monolayer graphene is investigated in the presence of a perpendicular quantizing magnetic field. Despite the small electron-phonon coupling, usual perturbation theory is inapplicable for…

介观与纳米尺度物理 · 物理学 2013-01-21 J. Zhu , S. M. Badalyan , F. Peeters

We study the electron-magnon scattering in bulk Fe, Co, and Ni within the framework of many-body perturbation theory implemented in the full-potential linearized augmented-plane-wave method. To this end, a $\mathbf{k}$-dependent self-energy…

强关联电子 · 物理学 2019-07-31 Mathias C. T. D. Müller , Stefan Blügel , Christoph Friedrich

We explore the inelastic electron scattering in SrTiO3, PbTiO3, and SiC in their phonon energy range, challenging the assumption that phonon polaritons are excluded at large angles in high-resolution transmission electron energy-loss…

We consider an electron-phonon system in two and three dimensions on square, hexagonal and cubic lattices. The model is a modification of the standard Holstein model where the optical branch is appropriately curved in order to have a…

统计力学 · 物理学 2009-10-31 N. Macris , C. -A. Piguet

We study electron-acoustic phonon scattering and electron relaxation in quantum rings in the absence and in the presence of external magnetic fields. Electron-phonon interaction is accounted for both the deformation potential and…

其他凝聚态物理 · 物理学 2007-05-23 G. Piacente , G. Q. Hai

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

The quantum-mechanical problems of electron scattering by an infinitely thin solenoid and by a half of an infinitely thin solenoid are examined from the viewpoint of constructing a self-adjoint Hamiltonian. It is demonstrated that in both…

量子物理 · 物理学 2008-01-28 I. V. Tyutin

We present a rigorous solution of the Boltzmann equation for the electron-phonon scattering problem in three spatial dimensions in the limit of low temperatures. The different temperature scaling of the various scattering rates turns the…

数学物理 · 物理学 2021-03-17 J. Amarel , D. Belitz , T. R. Kirkpatrick

We study the influence of inelastic electron-electron scattering on the temperature variation of the Seebeck coefficient in the normal phase of quasi-one-dimensional organic superconductors. The theory is based on the numerical solution of…

强关联电子 · 物理学 2016-12-07 M. Shahbazi , C. Bourbonnais

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

We have investigated the effect on phonon energy transport in mesoscopic systems and the reduction in the thermal conductance in the quantum limit due to phonon scattering by surface roughness using full 3-dimensional elasticity theory for…

介观与纳米尺度物理 · 物理学 2009-11-07 D. H. Santamore , M. C. Cross