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Related papers: Evidence of a coupled electron-phonon liquid in Nb…

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The flow of charge and entropy in solids usually depends on collisions decaying quasiparticle momentum. Hydrodynamic corrections can emerge, however, if most collisions among quasiparticles conserve momentum and the mean-free-path…

Strongly Correlated Electrons · Physics 2022-08-23 Alexandre Jaoui , Adrien Gourgout , Gabriel Seyfarth , Alaska Subedi , Thomas Lorenz , Benoît Fauqué , Kamran Behnia

Recent ARPES experiments in cuprates superconductors show a kink in the electron dispersion near the Fermi energy. This kink coexists with a linear frequency dependence of the imaginary part of the electron self-energy. In this paper we…

Strongly Correlated Electrons · Physics 2015-06-24 A. Greco , A. Dobry

We report the electronic structures and transport properties of a chiral crystal NbGe$_2$, which is a candidate for a coupled electron-phonon liquid. The electrical resistivity and thermoelectric power of NbGe$_2$ exhibit clear differences…

Strongly Correlated Electrons · Physics 2023-11-21 Yoshiki J. Sato , Ai Nakamura , Rei Nishinakayama , Ryuji Okazaki , Hisatomo Harima , Dai Aoki

The complex coupling between charge carriers and phonons is responsible for diverse phenomena in condensed matter. We apply ultrafast electron diffuse scattering to unravel electron-phonon coupling phenomena in 1T-TiSe$_2$ in both momentum…

Strongly Correlated Electrons · Physics 2021-05-14 Martin R. Otto , Jan-Hendrik Pöhls , Laurent P. René de Cotret , Mark J. Stern , Mark Sutton , Bradley J. Siwick

We present an \emph{ab-initio} study that identifies the main electron-phonon scattering channels in $n$-type PbTe. We develop an electronic transport model based on the Boltzmann transport equation within the transport relaxation time…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 Jiang Cao , Jose D. Querales-Flores , Aoife R. Murphy , Stephen Fahy , Ivana Savić

We report the first systematic measurements of the Raman scattering by electrons in elemental metals of Al, Mo, Nb, Os, Pb, Re, Ta, Ti, V, W and metallic compound La$B_6$. Experimental spectra are modelled on the base of the band…

Strongly Correlated Electrons · Physics 2012-08-09 Yu. S. Ponosov , S. V. Streltsov

Electron-phonon coupling, i.e., the scattering of lattice vibrations by electrons and vice versa, is ubiquitous in solids and can lead to emergent ground states such as superconductivity and charge-density wave order. Strong coupling of…

Topological semimetals have revealed a wide array of novel transport phenomena, including electron hydrodynamics, quantum field theoretic anomalies, and extreme magnetoresistances and mobilities. However, the scattering mechanisms central…

Electronic and thermal transport properties in two-dimensional (2D) semiconductors have been extensively investigated due to their potential to miniaturize transistors. Microscopically, electron-phonon interactions are considered the…

Mesoscale and Nanoscale Physics · Physics 2024-11-25 Yujie Quan , Bolin Liao

Transition metal dichalcogenides have recently emerged as promising two-dimensional materials with intriguing electronic properties. Existing calculations of intrinsic phonon-limited electronic transport so far have concentrated on the…

Materials Science · Physics 2017-10-05 Nicki Frank Hinsche , Kristian Sommer Thygesen

In this work we consider the hydrodynamic behavior of a coupled electron-phonon fluid, focusing on electronic transport under the conditions of strong phonon drag. This regime occurs when the rate of phonon equilibration due to e.g. umklapp…

Mesoscale and Nanoscale Physics · Physics 2020-06-15 Alex Levchenko , Jörg Schmalian

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…

Strongly Correlated Electrons · Physics 2017-02-27 C. Brockt , E. Jeckelmann

We study the influence of electron-phonon coupling on electron transport through a Luttinger liquid with an embedded weak scatterer or weak link. We derive the renormalization group (RG) equations which indicate that the directions of RG…

Strongly Correlated Electrons · Physics 2011-08-04 Alexey Galda , Igor V. Yurkevich , Igor V. Lerner

Phonon properties of $\mathrm{Mo_3Sb_{7-x}Te_x}$ ($x=0,1.5, 1.7$), a potential high-temperature thermoelectric material, have been studied with inelastic neutron and x-ray scattering, and with first-principles simulations. The substitution…

Materials Science · Physics 2015-12-11 Dipanshu Bansal , Chen W. Li , Ayman H. Said , Douglas L. Abernathy , Jiaqiang Yan , Olivier Delaire

The interplay of Coulomb and electron-phonon interactions with thermal and quantum fluctuations facilitates rich phase diagrams in two-dimensional electron systems. Layered transition metal dichalcogenides hosting charge, excitonic, spin…

Strongly Correlated Electrons · Physics 2018-07-03 E. G. C. P. van Loon , M. Rösner , G. Schönhoff , M. I. Katsnelson , T. O. Wehling

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…

Mesoscale and Nanoscale Physics · Physics 2015-11-02 Antti Laitinen , Mika Oksanen , Aurélien Fay , Daniel Cox , Matti Tomi , Pauli Virtanen , Pertti Hakonen

Coupling between electrons and phonons (lattice vibrations) drives the formation of the electron pairs responsible for conventional superconductivity. The lack of direct evidence for electron-phonon coupling in the electron dynamics of the…

A thorough understanding of the microscopic picture of heat conduction in solids is critical to a broad range of applications, from thermal management of microelectronics to more efficient thermoelectric materials. The transport properties…

Materials Science · Physics 2021-02-04 Yujie Quan , Shengying Yue , Bolin Liao

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…

Materials Science · Physics 2016-04-11 Lutz Waldecker , Roman Bertoni , Jan Vorberger , Ralph Ernstorfer

We present a comparison of electron-phonon interaction in NbB_2 and MgB_2, calculated using full-potential, density-functional-based methods in P6/mmm crystal structure. Our results, described in terms of (i) electronic structure, (ii)…

Superconductivity · Physics 2009-11-07 Prabhakar P. Singh
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