Sub-nanosecond magnetization dynamics of small permalloy (Ni80Fe20) elements has been investigated with a new full-field transmission microscope at the soft X-ray beamline P04 of the high brilliance synchrotron radiation source PETRA III. The soft X-ray microscope generates a flat-top illumination field of 20 μm diameter using a grating condenser. A tilted nanostructured magnetic sample can be excited by a picosecond electric current pulse via a coplanar waveguide. The transmitted light of the sample plane is directly imaged by a micro zone plate with < 65 nm resolution onto a 2D gateable X-ray detector to select one particular bunch in the storage ring that probes the time evolution of the dynamic information successively via XMCD spectromicroscopy in a pump-probe scheme. In the experiments it was possible to generate a homogeneously magnetized state in patterned magnetic layers by a strong magnetic Oersted field pulse of 200 ps duration and directly observe the recovery to the initial flux-closure vortex patterns.
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28 January 2016
XRM 2014: Proceedings of the 12th International Conference on X‐Ray Microscopy
26–31 October 2014
Melbourne, Australia
Research Article|
January 28 2016
A full-field transmission x-ray microscope for time-resolved imaging of magnetic nanostructures Free
J. Ewald;
J. Ewald
*
Institute for X-Optics (IXO)
, Hochschule Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
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P. Wessels;
P. Wessels
†The Hamburg Centre for Ultrafast Imaging (CUI),
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
**Institut für Experimentalphysik,
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
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M. Wieland;
M. Wieland
†The Hamburg Centre for Ultrafast Imaging (CUI),
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
**Institut für Experimentalphysik,
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
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T. Nisius;
T. Nisius
*
Institute for X-Optics (IXO)
, Hochschule Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
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A. Vogel;
A. Vogel
‡Institut für Angewandte Physik,
University of Hamburg
, Jungiusstraße 11, 20355 Hamburg, Germany
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G. Abbati;
G. Abbati
*
Institute for X-Optics (IXO)
, Hochschule Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
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S. Baumbach;
S. Baumbach
*
Institute for X-Optics (IXO)
, Hochschule Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
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J. Overbuschmann;
J. Overbuschmann
*
Institute for X-Optics (IXO)
, Hochschule Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
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J. Viefhaus;
J. Viefhaus
§
Deutsches Elektronen-Synchrotron (DESY)
, Notkestraße 85, 22607 Hamburg, Germany
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G. Meier;
G. Meier
†The Hamburg Centre for Ultrafast Imaging (CUI),
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
¶
Max Planck Institute for the Structure and Dynamics of Matter
, Luruper Chaussee 149, 22761 Hamburg, Germany
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T. Wilhein;
T. Wilhein
*
Institute for X-Optics (IXO)
, Hochschule Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
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M. Drescher
M. Drescher
†The Hamburg Centre for Ultrafast Imaging (CUI),
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
**Institut für Experimentalphysik,
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
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J. Ewald
1
P. Wessels
2,3
M. Wieland
2,3
T. Nisius
1
A. Vogel
4
G. Abbati
1
S. Baumbach
1
J. Overbuschmann
1
J. Viefhaus
5
G. Meier
2,6
T. Wilhein
1
M. Drescher
2,3
*
Institute for X-Optics (IXO)
, Hochschule Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
†The Hamburg Centre for Ultrafast Imaging (CUI),
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
**Institut für Experimentalphysik,
University of Hamburg
, Luruper Chaussee 149, 22761 Hamburg, Germany
‡Institut für Angewandte Physik,
University of Hamburg
, Jungiusstraße 11, 20355 Hamburg, Germany
§
Deutsches Elektronen-Synchrotron (DESY)
, Notkestraße 85, 22607 Hamburg, Germany
¶
Max Planck Institute for the Structure and Dynamics of Matter
, Luruper Chaussee 149, 22761 Hamburg, Germany
AIP Conf. Proc. 1696, 020005 (2016)
Citation
J. Ewald, P. Wessels, M. Wieland, T. Nisius, A. Vogel, G. Abbati, S. Baumbach, J. Overbuschmann, J. Viefhaus, G. Meier, T. Wilhein, M. Drescher; A full-field transmission x-ray microscope for time-resolved imaging of magnetic nanostructures. AIP Conf. Proc. 28 January 2016; 1696 (1): 020005. https://doi.org/10.1063/1.4937499
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