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Showing 1–5 of 5 results
Advanced filters: Author: B. Schönhense Clear advanced filters

  • Spintronics requires materials in which most of the spins at the Fermi edge are aligned with each other at room temperatures. Jourdan et al. observe such a spin polarization of 93% in Co2MnSi—a Heusler alloy amenable to many spintronic applications; evidence of the material’s half-metallicity.

    • M. Jourdan
    • J. Minár
    • M. Kläui
    ResearchOpen Access
    Nature Communications
    Volume: 5, P: 1-5

  • Time-of-flight momentum microscopy is developed. It enables direct three-dimensional mapping of the topology of the Fermi surface, identification of electron and hole pockets, and quantification of Fermi velocity as a function of wavevector.

    • K. Medjanik
    • O. Fedchenko
    • G. Schönhense
    Research
    Nature Materials
    Volume: 16, P: 615-621

  • Angle resolved photoelectron spectroscopy can reveal the band and spin structures of a system but the contribution of different types of photoelectron diffraction is challenging to interpret. Here, the authors develop an analysis method to reveal the contribution of Laue- and Kikuchi-type diffraction to the valence band spectra when using photoemission techniques.

    • G. Schönhense
    • K. Medjanik
    • H.-J. Elmers
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-13

  • The study of electronic structure of new materials has benefited from more widely available angle-resolved photoelectron spectroscopy (ARPES) at synchrotron sources, but hard X-ray ARPES, capable of mapping at a depth of some tens nanometres is still of limited access. The authors report on a method to obtain bulk electronic structure using hard X-rays ARPES combined with an effective data processing background removal strategy capable of revealing the valence band electronic dispersion of metal and semiconductor surfaces.

    • S. Babenkov
    • K. Medjanik
    • G. Schönhense
    ResearchOpen Access
    Communications Physics
    Volume: 2, P: 1-8