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Photoemission spectroscopy

About: Photoemission spectroscopy is a research topic. Over the lifetime, 10821 publications have been published within this topic receiving 250888 citations. The topic is also known as: photoelectron spectroscopy & PES.


Papers
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Journal ArticleDOI
TL;DR: The band structure of the prototypical charge-transfer insulator NiO is computed by using a combination of an ab initio band structure method and the dynamical mean-field theory with a quantum Monte-Carlo impurity solver, and the low-energy Zhang-Rice bands with strongly k-dependent orbital character are obtained.
Abstract: The band structure of the prototypical charge-transfer insulator NiO is computed by using a combination of an ab initio band structure method and the dynamical mean-field theory with a quantum Monte-Carlo impurity solver. Employing a Hamiltonian which includes both Ni d and O p orbitals we find excellent agreement with the energy bands determined from angle-resolved photoemission spectroscopy. This brings an important progress in a long-standing problem of solid-state theory. Most notably we obtain the low-energy Zhang-Rice bands with strongly k-dependent orbital character discussed previously in the context of low-energy model theories.

124 citations

Journal ArticleDOI
TL;DR: In this article, two-photon photoemission spectroscopy is employed to analyze reversible changes in the electronic structure of the molecular switch tetra- tert-butyl-azobenzene (TBA) adsorbed on Au(1.1), which are induced by UV-light and thermal activation.

124 citations

Journal ArticleDOI
TL;DR: In this article, the occupied and unoccupied densities of π-conjugated molecules measured via ultraviolet photoemission spectroscopy and inverse photo emission spectrography, respectively, are compared with corresponding densities calculated using the semi-empirical Hartree-Fock intermediate neglect of differential overlap (INDO) method.

123 citations

Journal ArticleDOI
TL;DR: Measurements of the coupling between Dirac fermion quasiparticles (DFQs) and phonons on the (001) surface of the strong topological insulator Bi2Se3 are reported, using inelastic helium-atom scattering to explore, for the first time, this coupling from the phonon perspective.
Abstract: In this Letter, we report measurements of the coupling between Dirac fermion quasiparticles (DFQs) and phonons on the (001) surface of the strong topological insulator ${\mathrm{Bi}}_{2}{\mathrm{Se}}_{3}$. While most contemporary investigations of this coupling have involved examining the temperature dependence of the DFQ self-energy via angle-resolved photoemission spectroscopy measurements, we employ inelastic helium-atom scattering to explore, for the first time, this coupling from the phonon perspective. Using a Hilbert transform, we are able to obtain the imaginary part of the phonon self-energy associated with a dispersive surface-phonon branch identified in our previous work [Phys. Rev. Lett. 107, 186102 (2011)] as having strong interactions with the DFQs. From this imaginary part of the self-energy we obtain a branch-specific electron-phonon coupling constant of 0.43, which is stronger than the values reported from the angle-resolved photoemission spectroscopy measurements.

123 citations

Journal ArticleDOI
TL;DR: In this paper, photoelectron spectroscopy of hydrated electrons in liquid water jets using multiple precursors and photodetachment wavelengths is described, giving a mean vertical binding energy of 3.6 ± 0.1 eV at a temperature of ∼280 K.

123 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023128
2022262
2021227
2020281
2019247
2018263