Tunable geometrical frustration in magnonic vortex crystals

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 micro...

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Bibliographic Details
Published in:Scientific reports 2018-01, Vol.8 (1), p.186-186, Article 186
Main Authors: Behncke, Carolin, Adolff, Christian F., Wintz, Sebastian, Hänze, Max, Schulte, Benedikt, Weigand, Markus, Finizio, Simone, Raabe, Jörg, Meier, Guido
Format: Article
Language:English
Subjects:
142/126
639/766/119/2793
639/766/119/997
Crystals
Humanities and Social Sciences
multidisciplinary
Polarization
Science
Science (multidisciplinary)
Spectroscopy
Vortices
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Summary: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.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-17480-1