scholarly journals Photoelectron Spectra of Gd2O2– and Nonmonotonic Photon-Energy-Dependent Variations in Populations of Close-Lying Neutral States

2021 ◽  
Vol 125 (3) ◽  
pp. 857-866
Author(s):  
Jarrett L. Mason ◽  
Hassan Harb ◽  
Ali Abou Taka ◽  
Abbey J. McMahon ◽  
Caleb D. Huizenga ◽  
...  
Keyword(s):  
Photon Energy ◽  
Photoelectron Spectra ◽  
Energy Dependent

Vibronic effects in the photon energy‐dependent photoelectron spectra of the CH3CN− dipole‐bound anion

1996 ◽  
Vol 104 (18) ◽  
pp. 6976-6983 ◽  
Author(s):  
Christopher G. Bailey ◽  
Caroline E. H. Dessent ◽  
Mark A. Johnson ◽  
Kit H. Bowen
Keyword(s):  
Photon Energy ◽  
Photoelectron Spectra ◽  
Energy Dependent ◽  
Vibronic Effects

scholarly journals Photoelectron Spectra of Gd2O2− and Non-Monotonic Photon-Energy Dependent Variations in Populations of Close-Lying Neutral States

2020 ◽  
Author(s):  
Jarrett L. Mason ◽  
Hassan Harb ◽  
Ali Abou Taka ◽  
Abbey McMahon ◽  
Caleb D. Huizenga ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Binding Energy ◽  
Photon Energy ◽  
Valence Electron ◽  
Electronic States ◽  
Photoelectron Spectra ◽  
Antiferromagnetic Coupling ◽  
Energy Window ◽  
Electron Transitions ◽  
Energy Dependent

<p>Photoelectron spectra of Gd<sub>2</sub>O<sub>2</sub><sup>−</sup> obtained with photon energies from 2.033 eV to 3.495 eV exhibit numerous close-lying neutral states with photon-energy-dependent relative intensities. Transitions to states falling within the electron binding energy window of 0.9 and 1.6 eV are attributed to one- or two-electron transitions to the ground and low-lying excited neutral states. An additional, manifold of electronic states observed in the 2.1 to 2.8 eV window cannot be assigned to any simple one-electron transitions. Because of the relatively simple electronic structure from the half-filled 4<i>f<sup>7</sup> </i>subshell occupancy in Gd<sub>2</sub>O<sub>2</sub><sup>–</sup>, the numerous transitions observed in the spectra are fairly well-resolved, allowing a detailed view of the changes in relative intensities of individual transitions with photon energy. With supporting calculations on the numerous close-lying electronic states, we suggest a description of strong photoelectron-valence electron interactions that result in the photon-energy dependent shake-up transitions and switching between ferro- and antiferromagnetic coupling. </p>

scholarly journals Photoelectron Spectra of Gd2O2− and Non-Monotonic Photon-Energy Dependent Variations in Populations of Close-Lying Neutral States

2020 ◽  
Author(s):  
Jarrett L. Mason ◽  
Hassan Harb ◽  
Ali Abou Taka ◽  
Abbey McMahon ◽  
Caleb D. Huizenga ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Binding Energy ◽  
Photon Energy ◽  
Valence Electron ◽  
Electronic States ◽  
Photoelectron Spectra ◽  
Antiferromagnetic Coupling ◽  
Energy Window ◽  
Electron Transitions ◽  
Energy Dependent

<p>Photoelectron spectra of Gd<sub>2</sub>O<sub>2</sub><sup>−</sup> obtained with photon energies from 2.033 eV to 3.495 eV exhibit numerous close-lying neutral states with photon-energy-dependent relative intensities. Transitions to states falling within the electron binding energy window of 0.9 and 1.6 eV are attributed to one- or two-electron transitions to the ground and low-lying excited neutral states. An additional, manifold of electronic states observed in the 2.1 to 2.8 eV window cannot be assigned to any simple one-electron transitions. Because of the relatively simple electronic structure from the half-filled 4<i>f<sup>7</sup> </i>subshell occupancy in Gd<sub>2</sub>O<sub>2</sub><sup>–</sup>, the numerous transitions observed in the spectra are fairly well-resolved, allowing a detailed view of the changes in relative intensities of individual transitions with photon energy. With supporting calculations on the numerous close-lying electronic states, we suggest a description of strong photoelectron-valence electron interactions that result in the photon-energy dependent shake-up transitions and switching between ferro- and antiferromagnetic coupling. </p>

scholarly journals Photon Energy-Dependent Hysteresis Effects in Lead Halide Perovskite Materials

2017 ◽  
Vol 121 (47) ◽  
pp. 26180-26187 ◽  
Author(s):  
Meysam Pazoki ◽  
T. Jesper Jacobsson ◽  
Silver H. T. Cruz ◽  
Malin B. Johansson ◽  
Roghayeh Imani ◽  
...  
Keyword(s):  
Photon Energy ◽  
Perovskite Materials ◽  
Halide Perovskite ◽  
Energy Dependent ◽  
Lead Halide

Progress in Fixed-Photon-Energy Time-Efficient Double Imaging Photoelectron/Photoion Coincidence Measurements in Quantitative Flame Analysis

2016 ◽  
Vol 230 (8) ◽  
Author(s):  
Daniel Felsmann ◽  
Arnas Lucassen ◽  
Julia Krüger ◽  
Christian Hemken ◽  
Luc-Sy Tran ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Synchrotron Radiation ◽  
Photon Energy ◽  
Molecular Beam ◽  
Vacuum Ultraviolet ◽  
Photoelectron Spectra ◽  
Combustion Analysis ◽  
Molecular Beam Mass Spectrometry ◽  
Vuv Photoionization ◽  
Coincidence Measurements

AbstractPhotoelectron photoion coincidence (PEPICO) spectroscopy as an attractive new technique for combustion analysis was used in a fixed-photon-energy configuration to provide quantitative species profiles in laminar premixed flames. While such measurements are conventionally performed with molecular-beam mass spectrometry (MBMS) using electron ionization (EI) or vacuum ultraviolet (VUV) photoionization (PI) with synchrotron radiation, these techniques have some limitations. The possibility to record photoelectron spectra (PES) simultaneously with photoionization data, providing fingerprint information for reliable species identification, presents a significant advantage of PEPICO spectroscopy especially in complex reactive mixtures. The multiplex approach presented here, enhanced by the imaging capabilities of the electron and ion detection in the so-called double-imaging PEPICO scheme (i

PHOTOELECTRON SPECTROSCOPY OF SILICON–CARBON CLUSTER ANIONS

1996 ◽  
Vol 03 (01) ◽  
pp. 411-415 ◽  
Author(s):  
A. NAKAJIMA ◽  
T. TAGUWA ◽  
K. NAKAO ◽  
M. GOMEI ◽  
R. KISHI ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Photon Energy ◽  
Photoelectron Spectroscopy ◽  
Carbon Cluster ◽  
Photoelectron Spectra ◽  
Laser Vaporization ◽  
Cluster Anions ◽  
Electron Spectrometer ◽  
Silicon Carbon ◽  
Magnetic Bottle

Photoelectron spectra of [Formula: see text] cluster anions (3≤n, m≤6) were measured at the photon energy of 3.49 eV, by using a magnetic-bottle electron spectrometer having ~60-meV resolution. The [Formula: see text] clusters were produced by laser vaporization of a carbon–silicon mixture rod in a He carrier gas. The spectra of the [Formula: see text] clusters are similar to those of pure [Formula: see text] clusters in the peak positions and their envelopes, which is attributed to the similarity in electronic structure of Si and C atoms, leading to a similar geometry. In contrast, the similarity in the photoelectron spectra is not observed between [Formula: see text] and [Formula: see text] clusters, which is attributed to a change in their geometry; from chain to ring.

Energy-dependent valence photoelectron spectra of SF6. Ab initio calculations and measurements

1998 ◽  
Vol 94 (1-2) ◽  
pp. 163-179 ◽  
Author(s):  
Li Yang ◽  
Hans Ågren ◽  
Vincenzo Carravetta ◽  
Olav Vahtras ◽  
Leif Karlsson ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Photoelectron Spectra ◽  
Energy Dependent

Photon energy dependent photoemission study of La0.7Sr0.3MnO3

2005 ◽  
Vol 575 (1-2) ◽  
pp. 29-34 ◽  
Author(s):  
M.C. Falub ◽  
M. Shi ◽  
J. Krempasky ◽  
K. Hricovini ◽  
Ya.M. Mukovskii ◽  
...  
Keyword(s):  
Photon Energy ◽  
Photoemission Study ◽  
Energy Dependent
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