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Title: Time-resolved scanning electron microscopy with polarization analysis

Abstract

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.

Authors:
;  [1];  [2]; ; ; ; ;  [1];  [3];  [2]; ;  [4]
  1. Institut für Nanostruktur-und Festkörperphysik, Universität Hamburg, Jungiusstraße 11, 20355 Hamburg (Germany)
  2. (Germany)
  3. Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg (Germany)
  4. Institute for Materials Science, Christian-Albrechts-Universität zu Kiel, 24143 Kiel (Germany)
Publication Date:
OSTI Identifier:
22591531
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 108; Journal Issue: 14; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Frömter, Robert, E-mail: rfroemte@physik.uni-hamburg.de, Oepen, Hans Peter, The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Kloodt, Fabian, Rößler, Stefan, Frauen, Axel, Staeck, Philipp, Cavicchia, Demetrio R., Bocklage, Lars, The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Röbisch, Volker, and Quandt, Eckhard. Time-resolved scanning electron microscopy with polarization analysis. United States: N. p., 2016. Web. doi:10.1063/1.4945053.
Frömter, Robert, E-mail: rfroemte@physik.uni-hamburg.de, Oepen, Hans Peter, The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Kloodt, Fabian, Rößler, Stefan, Frauen, Axel, Staeck, Philipp, Cavicchia, Demetrio R., Bocklage, Lars, The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Röbisch, Volker, & Quandt, Eckhard. Time-resolved scanning electron microscopy with polarization analysis. United States. doi:10.1063/1.4945053.
Frömter, Robert, E-mail: rfroemte@physik.uni-hamburg.de, Oepen, Hans Peter, The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Kloodt, Fabian, Rößler, Stefan, Frauen, Axel, Staeck, Philipp, Cavicchia, Demetrio R., Bocklage, Lars, The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Röbisch, Volker, and Quandt, Eckhard. Mon . "Time-resolved scanning electron microscopy with polarization analysis". United States. doi:10.1063/1.4945053.
@article{osti_22591531,
title = {Time-resolved scanning electron microscopy with polarization analysis},
author = {Frömter, Robert, E-mail: rfroemte@physik.uni-hamburg.de and Oepen, Hans Peter and The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg and Kloodt, Fabian and Rößler, Stefan and Frauen, Axel and Staeck, Philipp and Cavicchia, Demetrio R. and Bocklage, Lars and The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg and Röbisch, Volker and Quandt, Eckhard},
abstractNote = {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.},
doi = {10.1063/1.4945053},
journal = {Applied Physics Letters},
number = 14,
volume = 108,
place = {United States},
year = {Mon Apr 04 00:00:00 EDT 2016},
month = {Mon Apr 04 00:00:00 EDT 2016}
}