Introductory Photoemission Theory

Arai, Hiroko; Fujikawa, Takashi

doi:10.2116/analsci.26.147

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…With this intensity normalization, the on-resonance MF-PAD for the perpendicular transition is found to be slightly different from the off-resonance one; the intensity into perpendicular directions to the molecular axis is increased as compared with the off-resonance case (compare solid and broken curves in figure 5(a)). This is in agreement with the theoretical results of MARPE based on the nonrelativistic Keldysh Green's function approach by Arai et al [35]. Although the relatively large acceptance angles employed in the present experiments were not taken into account, their calculations well explain the overall features of observed onand off-resonance MF-PADs; for the perpendicular transition, the resonance enhancement shows a peak along the electric vector [35].…”

Section: Resultssupporting

confidence: 92%

“…This is in agreement with the theoretical results of MARPE based on the nonrelativistic Keldysh Green's function approach by Arai et al [35]. Although the relatively large acceptance angles employed in the present experiments were not taken into account, their calculations well explain the overall features of observed onand off-resonance MF-PADs; for the perpendicular transition, the resonance enhancement shows a peak along the electric vector [35].…”

Section: Resultssupporting

confidence: 92%

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Interatomic resonant Auger effects in core-level photoemission from NO and CS₂molecules

Yamazaki

Adachi

Teramoto

et al. 2013

J. Phys. B: At. Mol. Opt. Phys.

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Core-level interatomic resonant Auger in isolated molecules can take place when the photon energy is tuned to a resonant core-level excitation of an atom neighbouring the electron-emitter atom, provided that the emitter atom has smaller ionization energy of core electrons than the resonant energy. A multi-atomic nature of the Auger is a molecular analogue of multi-atom resonant photoemission (MARPE) observed in a condensed phase. This phenomenon in linear molecules, NO and CS 2 , has been explored by means of a photoelectron-fragment-ion-fragment-ion multi-coincidence velocity mapping technique. The N 1s (S 2p) photoionization experiments have been conducted at the O 1s → π * (C 1s → π * ) resonance energy and at the off-resonance one, in which photoelectron angular distributions were obtained with respect to the recoil axis of the fragment ions produced by an Auger decay following the core-level photoemission. A resonance enhancement was observed along the photon polarization direction and this effect strongly depends on the relative geometry of the polarization vector and the recoil axis. By comparing the N 1s photoemission of NO with the S 2p photoemission of CS 2 , it is shown that the resonance enhancement also depends on the core-orbital characters that participate in the process. Such phenomenon should be considered to be general and the present results of the simplest system thus shed new light on photoemission studies for both isolated molecules and condensed systems consisting of different elements.

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 92%

Interatomic resonant Auger effects in core-level photoemission from NO and CS₂molecules

Yamazaki

Adachi

Teramoto

et al. 2013

J. Phys. B: At. Mol. Opt. Phys.

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Recent Progresses in Nanometer Scale Analysis of Buried Layers and Interfaces in Thin Films by X-rays and Neutrons

Stoev

Sakurai

2020

ANAL. SCI.

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In early 1960s, scientists found the breakthroughs in the solid surfaces as well as artificial layered structures. The progress of the surface science has been supported by the advent of ultra-high vacuum technologies, newly discovered and established scanning probe microscopy with atomic resolution, as well as some other advanced surface-sensitive spectroscopy and microscopy. On the other hand, it has been well recognized that a number of functions are related to the structures of the interfaces, which are the thin plane connecting different materials, most likely by layering thin films. In spite of the scientific significance, so far, research on such buried layers and interfaces have been limited, just because the probing depth of almost all existing sophisticated analytical methods is only near surface. The present article describes the recent progress in the nanometer scale analysis of buried layers and interfaces, particularly by using X-rays and neutrons. The methods are essentially promising to probe non-destructively such buried structures in thin films. Latest scientific research has been surveyed; this includes applications to bio-chemical, organic, electronic, magnetic, spintronic, self-organizing and complicated systems as well as buried liquid-liquid and solid-liquid interfaces. Some emerging analytical techniques and instruments, which can give new attractive features such as imaging and real time analysis, are also discussed.

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Introductory Photoemission Theory

Cited by 2 publications

References 15 publications

Interatomic resonant Auger effects in core-level photoemission from NO and CS₂molecules

Interatomic resonant Auger effects in core-level photoemission from NO and CS₂molecules

Recent Progresses in Nanometer Scale Analysis of Buried Layers and Interfaces in Thin Films by X-rays and Neutrons

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Introductory Photoemission Theory

Cited by 2 publications

References 15 publications

Interatomic resonant Auger effects in core-level photoemission from NO and CS2molecules

Interatomic resonant Auger effects in core-level photoemission from NO and CS2molecules

Recent Progresses in Nanometer Scale Analysis of Buried Layers and Interfaces in Thin Films by X-rays and Neutrons

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Interatomic resonant Auger effects in core-level photoemission from NO and CS₂molecules

Interatomic resonant Auger effects in core-level photoemission from NO and CS₂molecules