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Related papers: Electron-phonon coupling in single-layer MoS2

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Electron spin resonance measurements in EuFe2As2 single crystals revealed an absorption spectrum of a single resonance with Dysonian lineshape. Above the spin-density wave transition at T_SDW = 190 K the spectra are isotropic and the spin…

We present thermal measurements of large area (over $1,000$~$\mu$m$^2$) monolayer graphene samples at cryogenic temperatures to study the electron-phonon thermal conductivity of graphene. By using two large samples with areas which differ…

Mesoscale and Nanoscale Physics · Physics 2016-02-10 Christopher B. McKitterick , Michael J. Rooks , Daniel E. Prober

Strong electron-electron interactions are known to significantly modify the electron-phonon coupling relative to the predictions of density functional theory, but this effect is challenging to calculate with realistic theories of strongly…

Strongly Correlated Electrons · Physics 2025-07-21 David J. Abramovitch , Jennifer Coulter , Sophie Beck , Andrew Millis

Spin-orbit coupling in solids is typically a single-body effect arising from relativity. In this work, we propose a spontaneous generation of spin-orbit coupling from symmetry breaking. A spin-dependent electron-phonon coupling model is…

Strongly Correlated Electrons · Physics 2024-10-23 Xiangyu Zhang , Da Wang , Congjun Wu

We present the results of Quantum Monte Carlo calculations for a two dimensional frustrated Hubbard model coupled to bond phonons. The model is known to have a d-wave superconducting ground state in the limit of large phonon frequency for…

Strongly Correlated Electrons · Physics 2020-04-08 R. T. Clay , D. Roy

In this work, we investigate the local structural distortion of the double perovskite Ba$_2$YMoO$_6$ by means of infrared transmission spectroscopy. At 300 K, three bands are observed at $\sim$ 255.1 cm$^{-1}$, $\sim$ 343.4 cm$^{-1}$, and…

Strongly Correlated Electrons · Physics 2013-04-05 Zhe Qu , Youming Zou , Shile Zhang , Langsheng Ling , Lei Zhang , Yuheng Zhang

We have measured shot noise in metallic single-walled carbon nanotubes of length L=1 $\mu$m and have found strong suppression of noise with increasing voltage. We conclude that the coupling of electron and phonon baths at temperatures $T_e$…

Mesoscale and Nanoscale Physics · Physics 2011-04-22 Fan Wu , Pauli Virtanen , Soren Andresen , Bernard Placais , Pertti Hakonen

The reflectivity of single-crystalline CoO has been studied by optical spectroscopy for wave numbers ranging from 100 to 28,000\wn and for temperatures 8 $< T <$ 325 K\@. A splitting of the cubic IR-active phonon mode on passing the…

Strongly Correlated Electrons · Physics 2009-01-20 Ch. Kant , T. Rudolf , F. Schrettle , F. Mayr , J. Deisenhofer , P. Lunkenheimer , M. V. Eremin , A. Loidl

Linear response methods are applied to identify the increase in electron-phonon coupling in elemental yttrium that is responsible for its high superconducting critical temperature Tc, which reaches nearly 20 K at 115 GPa. While the…

Superconductivity · Physics 2007-05-23 Z. P. Yin , S. Y. Savrasov , W. E. Pickett

Ultraflat bands have already been detected in twisted bilayer graphene and twisted bilayer transition-metal dichalcogenides, which provide a platform to investigate strong correlations. In this paper, the electronic properties of twisted…

Materials Science · Physics 2024-03-05 Yonggang Li , Zhen Zhan , Shengjun Yuan

Quasi-2D van der Waals ferromagnet Fe$_4$GeTe$_2$, featuring the simultaneous presence of high Curie temperature ($T_\mathrm{C}$ $\sim 270$ K) and a spin-reorientation transition at $T_\mathrm{SR}$ $\sim 110$ K, is a rare system where…

In order to explore the consequences of spin-orbit coupling on spin-phonon interactions in a set of chemically-similar mixed metal oxides, we measured the infrared vibrational properties of Co$_4B_2$O$_9$ ($B$ = Nb, Ta) as a function of…

Materials Science · Physics 2023-05-26 K. Park , J. Kim , S. Choi , S. Fan , C. Kim , D. G. Oh , N. Lee , S. -W. Cheong , V. Kiryukhin , Y. J. Choi , D. Vanderbilt , J. H. Lee , J. L. Musfeldt

The electronic structures, lattice dynamics, and magnetic properties of crystal {\beta}-FeSe under hydrostatic pressure have been studied by using the first-principles electronic structure calculations with van der Waals (vdW) corrections.…

Superconductivity · Physics 2013-11-25 Qian-Qian Ye , Kai Liu , Zhong-Yi Lu

We show that the electron-phonon coupling strength obtained from the slopes of the electronic energy vs. wavevector dispersion relations, as often done in analyzing angle-resolved photoemission data, can differ substantially from the actual…

We propose an accurate tight-binding parametrization for the band structure of MoS$_2$ monolayers near the main energy gap. We introduce a generic and straightforward derivation for the band energies equations that could be employed for…

Mesoscale and Nanoscale Physics · Physics 2015-09-02 E. Ridolfi , D. Le , T. S. Rahman , E. R. Mucciolo , C. H. Lewenkopf

Magneto Raman scattering study of the E$_{2g}$ optical phonons in multi-layer epitaxial graphene grown on a carbon face of SiC are presented. At 4.2K in magnetic field up to 33 T, we observe a series of well pronounced avoided crossings…

Materials Science · Physics 2015-05-13 C. Faugeras , M. Amado , P. Kossacki , M. Orlita , M. Sprinkle , C. Berger , W. A. de Heer , M. Potemski

Interaction between electrons and phonons in solids is a key effect defining physical properties of materials such as electrical and thermal conductivity. In transitional metal dichalcogenides (TMDCs) the electron-phonon coupling results in…

We report a comprehensive THz, infrared and optical study of Nb doped SrTiO3 as well as DC conductivity and Hall effect measurements. Our THz spectra at 7K show the presence of a very narrow (<2 meV) Drude peak, the spectral weight of which…

Strongly Correlated Electrons · Physics 2009-11-13 J. L. M. van Mechelen , D. van der Marel , C. Grimaldi , A. B. Kuzmenko , N. P. Armitage , N. Reyren , H. Hagemann , I. I. Mazin

We show how the magneto-phonon resonance, particularly pronounced in sp2 carbon allotropes, can be used as a tool to probe the band structure of multilayer graphene specimens. Even when electronic excitations cannot be directly observed,…

Mesoscale and Nanoscale Physics · Physics 2012-09-11 C. Faugeras , P Kossacki , A. A. L. Nicolet , M. Orlita , M Potemski , A. Mahmood , D. M. Basko

The large variations of T$_c$ across the cuprate families is one of the major unsolved puzzles in condensed matter physics, and is poorly understood. Although there appears to be a great deal of universality in the cuprates, several orders…

Superconductivity · Physics 2010-08-23 S. Johnston , F. Vernay , B. Moritz , Z. -X. Shen , N. Nagaosa , J. Zaanen , T. P. Devereaux