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  Tunable geometrical frustration in magnonic vortex crystals

Behncke, C., Adolff, C. F., Wintz, S., Hänze, M., Schulte, B., Weigand, M., et al. (2018). Tunable geometrical frustration in magnonic vortex crystals. Scientific Reports, 8: 186. doi:10.1038/s41598-017-17480-1.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-18A1-F Version Permalink: http://hdl.handle.net/21.11116/0000-0000-18A2-E
Genre: Journal Article

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 Creators:
Behncke, C.1, Author
Adolff, C. F.1, 2, Author
Wintz, S.3, Author
Hänze, M.4, 5, Author              
Schulte, B.6, Author              
Weigand, M.7, Author
Finizio, S.3, Author
Raabe, S. J.3, Author
Meier, G.2, 8, Author              
Affiliations:
1Institut für Angewandte Physik und Zentrum für Mikrostrukturforschung, Universität Hamburg, Jungiusstr. 11, 20355, Hamburg, Germany., ou_persistent22              
2The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761, Hamburg, Germany., ou_persistent22              
3Paul Scherrer Institut, 5232, Villigen PSI, Switzerland, ou_persistent22              
4Max-Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany, ou_persistent22              
5Dynamics of Nanoelectronic Systems, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938290              
6Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
7Max-Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany, ou_persistent22              
8Ultrafast Electronics, Scientific Service Units, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2074323              

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 Abstract: A novel approach to investigate geometrical frustration is introduced using two-dimensional magnonic vortex crystals. The frustration of the crystal can be manipulated and turned on and off dynamically on the timescale of milliseconds. The vortices are studied using scanning transmission x-ray microscopy and ferromagnetic resonance spectroscopy. They are arranged analogous to the nanomagnets in artificial spin-ice systems. The polarization state of the vortices is tuned in a way that geometrical frustration arises. We demonstrate that frustrated polarization states and non-frustrated states can be tuned to the crystal by changing the frequency of the state formation process.

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Language(s): eng - English
 Dates: 2017-10-062017-11-242018-01-092018-01-09
 Publication Status: Published in print
 Pages: 7
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1038/s41598-017-17480-1
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Project name : Part of this work was performed at the PolLux (X07DA) endstation of the Swiss Light Source, Villigen, Switzerland. The PolLux end station was financed by the German Minister für Bildung und Forschung (BMBF) through contracts 05KS4WE1/6 and 05KS7WE1. Financial support of the Deutsche Forschungsgemeinschaft via the Sonderforschungsbereich 668 and the Graduiertenkolleg 1286 is gratefully acknowledged. This work has been supported by the excellence cluster ‘The Hamburg Centre for Ultrafast Imaging - Structure, Dynamics, and the Centre of Matter at the Atomic Scale’ of the Deutsche Forschungsgemeinschaft.
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 8 Sequence Number: 186 Start / End Page: - Identifier: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322