Development of hard X-ray photoelectron SPLEED-based spectrometer applicable for probing of buried magnetic layer valence states
Kozina X, Ikenaga E, Barbosa CEV, Ouardi S, Karel J, Yamamoto M, Kobayashi K, Elmers HJ, Schoenhense G, Felser C (2016)
Publication Type: Journal article
Publication year: 2016
Journal
Book Volume: 211
Pages Range: 12-18
DOI: 10.1016/j.elspec.2016.05.001
Abstract
A novel design of high-voltage compatible polarimeter for spin-resolved hard X-ray photoelectron spectroscopy (Spin-HAXPES) went into operation at beamline BL09XU of SPring-8 in Hyogo, Japan. The detector is based on the well-established principle of electron diffraction from a W(001) single-crystal at a scattering energy of 103.5 eV. It's special feature is that it can be operated at a high negative bias potential up to 10 kV, necessary to access the HAXPES range. The polarimeter is operated behind a large hemispherical analyzer (Scienta R-4000). It was optimized for high transmission of the transfer optics. A delay-line detector (20 mm dia.) is positioned at the exit plane of the analyzer enabling conventional multichannel intensity spectroscopy simultaneously with single-channel spin analysis. The performance of the combined setup is demonstrated by the spin-resolved data for the valence-region of a FeCo functional layer of a tunneling device, buried beneath 3 nm of oxidic material. The well-structured spin polarization spectrum validates Spin-HAXPES in the valence energy range as powerful method for bulk electronic structure analysis. The spin polarization spectrum exhibits a rich structure, originating from clearly discernible transitions in the majority and minority partial spin spectra.
Involved external institutions
Japan Synchrotron Radiation Research Institute (JASRI)
Japan (JP)
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Hokkaido University (Hokudai) / 北海道大学
Japan (JP)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
Japan (JP)
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Hokkaido University (Hokudai) / 北海道大学
Japan (JP)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
How to cite
APA:
Kozina, X., Ikenaga, E., Barbosa, C.E.V., Ouardi, S., Karel, J., Yamamoto, M.,... Felser, C. (2016). Development of hard X-ray photoelectron SPLEED-based spectrometer applicable for probing of buried magnetic layer valence states. Journal of Electron Spectroscopy and Related Phenomena, 211, 12-18. https://dx.doi.org/10.1016/j.elspec.2016.05.001
MLA:
Kozina, Xeniya, et al. "Development of hard X-ray photoelectron SPLEED-based spectrometer applicable for probing of buried magnetic layer valence states." Journal of Electron Spectroscopy and Related Phenomena 211 (2016): 12-18.
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