Theoretical Study of Plasmon Losses in Low-energy Photoemission Spectra

Ohori, Yusuke; Shinotsuka, Hiroshi; Kazama, Misato; Fujikawa, Takashi

doi:10.1380/ejssnt.2012.145

Cited by 6 publications

(3 citation statements)

References 15 publications

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“…The applicability of the quantum Landau formula has recently been reported by Ohori et al [17]. Their study has shown that the formula can be safely used even in the intermediate energy region (say, several hundred eV) as far as the photoelectron momentum p is nearly parallel to the x-ray polarization vector.…”

Section: Discussionmentioning

confidence: 96%

Plasmon Losses in High-Energy X-Ray Photoemission Studied by Quantum Landau Formula

Kazama

Shinotsuka

Ohori

et al. 2012

e-J. Surf. Sci. Nanotechnol.

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Single plasmon losses associated with Al 2s photoemission have been theoretically studied on the basis of the quantum Landau formula, which describes overall features of x-ray photoelectron spectra. So far only photoelectron propagations from the emitters to the surface have been considered, and elastic scatterings have been completely neglected in studies of plasmon satellite peaks. This work takes all possible paths into account and includes elastic scatterings up to single scattering. The former causes rapid decay of the extrinsic loss intensity as a function of the emitter depth, and the latter emphasizes the photoemission from deep atomic sites.

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Section: Discussionmentioning

confidence: 96%

Plasmon Losses in High-Energy X-Ray Photoemission Studied by Quantum Landau Formula

Kazama

Shinotsuka

Ohori

et al. 2012

e-J. Surf. Sci. Nanotechnol.

Self Cite

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“…Ohori et al have studied the applicability of the quantum Landau formula where they have considered no elastic scattering. Their results show that the quantum Landau formula gives results quite similar to those without use of the high‐energy approximation in the photoelectron kinetic energy range from 60 to 1000 eV. Uwatoko et al have measured and calculated single plasmon loss spectra associated with Al 2p photoemission on the basis of Hedin's formalism, which shows rather good results as far as we include the interference.…”

Section: Introductionmentioning

confidence: 87%

Theoretical study of plasmon losses from Li 1s level in core‐level photoemission spectra

Niki

Yamamura

Ohori

et al. 2014

Surface & Interface Analysis

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We have studied the surface and bulk plasmon losses associated with Li 1s photoemission. Here, full multiple scatterings of photoelectrons are taken into account before and after the plasmon losses within the quantum Landau formula that can describe overall features of the photoemission bands. We compared the depth profiles of the Li 1s single‐loss spectra with full multiple scatterings and without elastic scatterings. They are strongly influenced by the elastic scatterings. The model accounting for the full multiple scatterings gives a rapidly decaying function of the depth because of the defocusing effects. Copyright © 2014 John Wiley & Sons, Ltd.

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“…• [9]. By considering multiple elastic scattering, depth dependence produced by local atomic arrangements [10] and the double slit effect which occurs between two scatters can be considered [11].…”

Section: Introductionmentioning

confidence: 99%

Azimuthal Angular Dependence of Plasmon Loss in Core-Level Photoemission with Multiple Scattering Theory

Yamamura

Tamura

Kazama

et al. 2016

e-J. Surf. Sci. Nanotech.

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We have theoretically studied the azimuthal angular dependance of surface and bulk plasmon losses in Al 2s photoemission spectra. Here, full multiple scatterings of photoelectrons are taken into account before and after plasmon losses within the quantum Landau formula, which can describe overall features of the photoemission bands. By considering elastic scattering, the azimuthal angular dependence can be evaluated. Two types of peaks are observed; strong peaks attributed to forward focusing and weak peaks appeared as diffraction pattern. Forward focusing peaks are observed when atoms exists in the forward direction. The peak intensities from deeper layers are reduced by the defocusing effect. The origin of the weak peaks are discussed with the local geometric analysis. The differences of main, 1st bulk and surface plasmon loss are discussed.The peaks of diffraction pattern largely changed by increasing the photoelectron kinetic energy.

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Theoretical Study of Plasmon Losses in Low-energy Photoemission Spectra

Cited by 6 publications

References 15 publications

Plasmon Losses in High-Energy X-Ray Photoemission Studied by Quantum Landau Formula

Plasmon Losses in High-Energy X-Ray Photoemission Studied by Quantum Landau Formula

Theoretical study of plasmon losses from Li 1s level in core‐level photoemission spectra

Azimuthal Angular Dependence of Plasmon Loss in Core-Level Photoemission with Multiple Scattering Theory

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