Theoretical studies on magnetic atom imaging by use of photoelectron diffraction

We theoretically study possible methods how to obtain imaging of magnetic atoms by use of photoelectron diffraction (PD). We propose a novel method to apply Daimon effect where PD peaks are rotated around forward focusing peaks. In usual circular dichroism, we simply use the difference of the PD int...

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Bibliographic Details
Published in:Surface science 2008-09, Vol.602 (17), p.2907-2914
Main Authors: Wada, Masahiko, Ito, Kouta, Konishi, Takehisa, Fujikawa, Takashi
Format: Article
Language:English
Subjects:
Circular dichroism
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Daimon effect
Exact sciences and technology
Photoelectron diffraction
Physics
Surface magnetism
XPS
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Summary:We theoretically study possible methods how to obtain imaging of magnetic atoms by use of photoelectron diffraction (PD). We propose a novel method to apply Daimon effect where PD peaks are rotated around forward focusing peaks. In usual circular dichroism, we simply use the difference of the PD intensities for different X-ray circular polarization. In contrast to this dichroism, we rather use the difference of the PD intensities for different circular polarizations but - ϕ is used for the – circular polarization only in the data handling. This technique allows us to obtain clear atomic image only of spin polarized atoms, and to distinguish magnetic atoms with up-spins from those with down spins. Some illustrative calculations demonstrate the potential use and also the limitation of this technique.
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2008.07.014