Time-resolved scanning electron microscopy with polarization analysis

Journal Article · Mon Apr 04 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4945053· OSTI ID:22591531

Frömter, Robert; Oepen, Hans Peter ^[1]; Kloodt, Fabian; Rößler, Stefan; Frauen, Axel; Staeck, Philipp; Cavicchia, Demetrio R. ^[1]; Bocklage, Lars ^[2]; Röbisch, Volker; Quandt, Eckhard ^[3]

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1. Institut für Nanostruktur-und Festkörperphysik, Universität Hamburg, Jungiusstraße 11, 20355 Hamburg (Germany)
2. Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg (Germany)
3. Institute for Materials Science, Christian-Albrechts-Universität zu Kiel, 24143 Kiel (Germany)

We demonstrate the feasibility of investigating periodically driven magnetization dynamics in a scanning electron microscope with polarization analysis based on spin-polarized low-energy electron diffraction. With the present setup, analyzing the time structure of the scattering events, we obtain a temporal resolution of 700 ps, which is demonstrated by means of imaging the field-driven 100 MHz gyration of the vortex in a soft-magnetic FeCoSiB square. Owing to the efficient intrinsic timing scheme, high-quality movies, giving two components of the magnetization simultaneously, can be recorded on the time scale of hours.

• OSTI ID: 22591531
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 14 Vol. 108; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRON DIFFRACTION
ELECTRON SCANNING
MAGNETIZATION
MHZ RANGE 01-100
PERIODICITY
POLARIZATION
SCANNING ELECTRON MICROSCOPY
SPIN
SPIN ORIENTATION
TIME RESOLUTION