Berlin 2018 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 52: Poster: Electronic structure: Surface Magnetism and Spin Phenomena
O 52.6: Poster
Dienstag, 13. März 2018, 18:15–20:30, Poster B
Spin-resolved very-low-energy electron diffraction from ferromagnetic Fe films — •Christoph Angrick1, Andre Reimann1, Christian Thiede1, Koji Miyamoto2, and Markus Donath1 — 1Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Germany — 2HiSOR, Hiroshima University, Japan
Spin-dependent electron scattering from ferromagnetic films is interesting for two reasons: (i) A ferromagnetic film can be used as a promising scattering target in spin-polarization analyzers as single [1,2] and multichannel devices [3,4]. Ferromagnetic films offer a high Sherman function and an easy way to reverse the asymmetry. (ii) Electron scattering experiments provide information about the surface barrier, which is predicted to be spin-dependent for ferromagnets [5].
We investigate ferromagnetic Fe films with spin-resolved very-low-energy electron diffraction by varying the electron kinetic energy and the incident polar as well as azimuthal angle over a wide range. In the focus of this work are two targets: (i) p(1x1)O-Fe(001)/MgO(001) and (ii) Fe(110)/W(110).
[1] Winkelmann et al., Rev. Sci. Instrum. 79, 083303 (2008)
[2] Okuda et al., Rev. Sci. Instrum. 79, 123117 (2008)
[3] Kolbe et al., Phys. Rev. Lett. 107, 207601 (2011)
[4] Tusche et al., Appl. Phys. Lett. 99, 032505 (2011)
[5] Burgbacher et al., Phys. Rev. B 87, 195411 (2013)