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Tunable geometrical frustration in magnonic vortex crystals.

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.

SUBMITTER: Behncke C

PROVIDER: S-EPMC5760707 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature

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Tunable geometrical frustration in magnonic vortex crystals.

Behncke Carolin C Adolff Christian F CF Wintz Sebastian S Hänze Max M Schulte Benedikt B Weigand Markus M Finizio Simone S Raabe Jörg J Meier Guido G

Scientific reports 20180109 1

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 ...[more]

PMID: 29317651

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