scispace - formally typeset
Search or ask a question
Topic

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
More filters
Journal ArticleDOI
TL;DR: In this paper, an analysis of the Jahn-Teller effect in the photoelectron spectrum of methane was performed by the use of the ab initio self-consistent field and configuration interaction calculations.
Abstract: An analysis of the Jahn–Teller effect in the photoelectron spectrum of methane was performed by the use of the ab initio self‐consistent field and configuration interaction calculations. The molecular structures of the CH+4 ion, which have a local energy minimum, are found to be in the C2v and C3v symmetry. The vertical excitation energy is calculated to be 14.23 eV and the adiabatic ionization potentials of the CH+4 ion including zero‐point vibrational energy are estimated to be 12.25 and 12.68 eV for the C2v and C3v symmetry, respectively. We calculated the normal modes of vibration and the Franck–Condon factor in the harmonic oscillator approximation, and assigned the vibrational band below 13.10 eV of the CH+4 ion.

67 citations

Journal ArticleDOI
TL;DR: In this article, a new model for the Si/SiO2 interface is proposed which is consistent with the current understanding of photoemission for Si and SiO2 interfaces as well as with results from numerous other experiments.
Abstract: Photoemission spectroscopy of spherosiloxane cluster derived Si/SiOx interfaces has allowed the direct assignment of observed spectral features to specific chemical moieties. The implications of these assignments for structural models of the Si/SiO2 interface are explored. Models specifically constructed to be consistent with photoemission data are shown to be incorrect after reanalysis of core‐level shifts based on the recently synthesized model systems. A new model for the Si/SiO2 interface is proposed which is consistent with the current understanding of photoemission for Si/SiOx interfaces as well as with results from numerous other experiments.

67 citations

Journal ArticleDOI
TL;DR: The quantum-size-effect structure of ultrathin Pb and Pb-In alloy films on Si(111) surfaces is studied by photoemission spectroscopy and analyzed, taking into account electron scattering and film structure, which is characterized by high-energy-reflection-electron diffraction.
Abstract: The quantum-size-effect structure of ultrathin Pb and Pb-In alloy films on Si(111) surfaces is studied by photoemission spectroscopy in the thickness range from 0 to about 30 monolayers and analyzed, taking into account electron scattering and film structure, which is characterized by high-energy-reflection-electron diffraction

67 citations

Journal ArticleDOI
TL;DR: A laser-based scanning angle-resolved photoemission spectroscopy system equipped with a high precision 6-axis control system that enables the µ-ARPES system to probe fine details of intrinsic electronic states near the Fermi level such as the superconducting gaps and lifetime broadening.

67 citations

Journal ArticleDOI
TL;DR: Partial photoelectron cross sections σ and angular distribution parameters β were obtained for the first five valence orbitals in CF4: 1t1, 4t2, 1e, 3t2 and 4a1, as a function of photon energy from 17 to 70 eV as discussed by the authors.
Abstract: Partial photoelectron cross sections σ and angular distribution parameters β were obtained for the first five valence orbitals in CF4: 1t1, 4t2, 1e, 3t2, and 4a1, as a function of photon energy from 17 to 70 eV. These data were taken with the aid of angle‐resolved photoelectron spectroscopy and synchrotron radiation. The results were compared with earlier data on CCl4. Substantial differences were found. These are explained partly in terms of the absence of a Cooper minimum with a fluorine compound as opposed to the presence of a Cooper minimum with chlorine compounds and partly in terms of the position of shape resonances. Data on CF4 were also compared with recent calculations of Stephens et al., who used the multiple‐scattering Xα method. Structure in the photoelectron spectrum of CF4 lying on the low energy side of the third band was identified as due to autoionization and evidence is given as to its specific nature.

67 citations


Network Information
Related Topics (5)
Band gap
86.8K papers, 2.2M citations
92% related
Thin film
275.5K papers, 4.5M citations
90% related
Raman spectroscopy
122.6K papers, 2.8M citations
89% related
Amorphous solid
117K papers, 2.2M citations
88% related
Silicon
196K papers, 3M citations
87% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023128
2022262
2021227
2020281
2019247
2018263