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Related papers: Quantitative comparison of LDA+DMFT and ARPES spec…

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We present a combined density functional theory (DFT), one-step model of photoemission, and soft x-ray angle-resolved photoemission spectroscopy (SX-ARPES) study of the electronic structure of the quaternary borocarbide superconductor…

Strongly Correlated Electrons · Physics 2025-03-18 Aki Pulkkinen , Geoffroy Kremer , Vladimir N. Strocov , Frank Weber , Ján Minár , Claude Monney

Angle-resolved photoemission spectroscopy (ARPES) is used to study the scattering rates of charge carriers from the hole pockets near Gamma in the iron-based high-Tc hole doped superconductors KxBa1-xFe2As2 x=0.4 and KxEu1-xFe2As2 x=0.55$…

Recent density functional theory (DFT) calculations for KFe2As2 have shown to be insufficient to satisfactorily describe angle-resolved photoemission (ARPES) measurements as well as observed de Haas van Alphen (dHvA) frequencies. In the…

Strongly Correlated Electrons · Physics 2014-08-21 Steffen Backes , Daniel Guterding , Harald O. Jeschke , Roser Valenti

The electronic structure of high-quality van der Waals NiPS$_3$ crystals was studied using near-edge x-ray absorption spectroscopy (NEXAFS) and resonant photoelectron spectroscopy (ResPES) in combination with density functional theory (DFT)…

In the past decade, the advent of time-resolved spectroscopic tools has provided a new ground to explore fundamental interactions in solids and to disentangle degrees of freedom whose coupling leads to broad structures in the frequency…

Angle-resolved photoemission spectroscopy (ARPES) is considered as the only experimental tool from which the momentum distribution of both the superconducting and pseudo-gap can be quantitatively derived. The binding energy of the leading…

Superconductivity · Physics 2007-05-23 A. A. Kordyuk , S. V. Borisenko , M. Knupfer , J. Fink

We study how the energy and momentum resolution of angle-resolved photoemission spectroscopy (ARPES) affects the linewidth, Fermi crossing, velocity, and curvature of the measured band structure. Based on the fact that the resolution…

Strongly Correlated Electrons · Physics 2015-06-16 G. Levy , W. Nettke , B. M. Ludbrook , C. N. Veenstra , A. Damascelli

Ultrafast spectroscopies have become an important tool for elucidating the microscopic description and dynamical properties of quantum materials. In particular, by tracking the dynamics of non-thermal electrons, a material's dominant…

We use a simple one-dimensional two-band model with electron-phonon coupling to illustrate some of the complications that arise in multi-band systems when trying to extract a self-energy using the typical approach used for single-band…

Strongly Correlated Electrons · Physics 2025-08-07 Yau Chuen Yam , Mona Berciu , George A. Sawayzky

Laser-based angle-resolved photoemission spectroscopy (ARPES) and two-photon photoemission spectroscopy (2PPES) are employed to study the valence electronic structure of the Weyl semimetal candidate Td-WTe$_2$ along two high symmetry…

Materials Science · Physics 2020-06-23 Petra Hein , Stephan Jauernik , Hermann Erk , Lexian Yang , Yanpeng Qi , Yan Sun , Claudia Felser , Michael Bauer

We present a new method of extracting electron-boson spectral function $\alpha^2$F($\omega$) from infrared and photoemission data. This procedure is based on inverse theory and will be shown to be superior to previous techniques. Numerical…

Superconductivity · Physics 2009-11-10 S. V. Dordevic , C. C. Homes , J. J. Tu , T. Valla , M. Strongin , P. D. Johnson , G. D. Gu , D. N. Basov

Angle-resolved photoemission spectroscopy (ARPES) is one of the most powerful experimental techniques in condensed matter physics. Synchrotron ARPES, which uses photons with high flux and continuously tunable energy, has become particularly…

Instrumentation and Detectors · Physics 2021-02-22 Yi-Chen Yang , Zheng-Tai Liu , Ji-Shan Liu , Zhong-Hao Liu , Wan-Ling Liu , Xiang-Le Lu , Hong-Ping Mei , Ang Li , Mao Ye , Shan Qiao , Da-Wei Shen

Data from angle resolved photo-emission spectroscopy (ARPES) often serves as a smoking-gun evidence for the existence of topological materials. It provides the energy dispersion curves of the topological boundary modes which characterize…

Mesoscale and Nanoscale Physics · Physics 2015-12-08 Zohar Ringel

The angle-resolved photoemission spectroscopy (ARPES) is one powerful experimental technique to study the electronic structure of materials. As many electron materials show unusual many-body correlations, the technique to detect directly…

Superconductivity · Physics 2020-05-12 Yuehua Su , Chao Zhang

Angle-resolved photoemission spectroscopy (ARPES) is used to study the energy and momentum dependence of the inelastic scattering rates and the mass renormalization of charge carriers in LiFeAs at several high symmetry points in the…

Studies of the electronic spectral function in cuprates by Angle-Resolved Photo-Emission Spectroscopy reveal unusual features in the pseudogap phase that persist in the superconducting phase. We address here these observations based on the…

Superconductivity · Physics 2020-09-16 Maxence Grandadam , Debmalya Chakraborty , Xavier Montiel , Catherine Pépin

Angle-resolved photoemission spectroscopy (ARPES) is the most powerful technique to investigate the electronic band structure of crystalline solids. To completely characterize the electronic structure of topological materials, one needs to…

Using time dependent density functional theory (TDDFT) we examine the energy, angular and time-resolved photoelectron spectra (TRPES) of ethylene in a pump-probe setup. To simulate TRPES we expose ethylene to an ultraviolet (UV) femtosecond…

Atomic and Molecular Clusters · Physics 2014-08-28 Alison Crawford-Uranga , Umberto De Giovannini , Duncan John Mowbray , Stefan Kurth , Angel Rubio

The ability to directly observe electronic band structure in modern nanoscale field-effect devices could transform understanding of their physics and function. One could, for example, visualize local changes in the electrical and chemical…

Recent advances using Density Functional Theory (DFT) to augment Multiplet Ligand Field Theory (MLFT) have led to ab-initio calculations of many formerly empirical parameters. This development makes MLFT more predictive instead of…

Strongly Correlated Electrons · Physics 2023-05-01 Charles Cardot , Joshua Kas , Jared Abramson , John Rehr , Gerald T. Seidler
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