METHOD OF CONTROLLING THE STATES AND VORTEX CHIRALITY IN HEXAGONAL RING STRUCTURES COMPRISING NANOSCALE MAGNETIC ELEMENTS

METHOD OF CONTROLLING THE STATES AND VORTEX CHIRALITY IN HEXAGONAL RING STRUCTURES COMPRISING NANOSCALE MAGNETIC ELEMENTS

A method is provided for achieving specific magnetic states with a given vortex chirality in artificial kagome spin ice building block structures containing one or more hexagonal rings of ferromagnetic islands created with electron beam lithography, where a subgroup of the ferromagnetic islands have...

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Bibliographische Detailangaben
Hauptverfasser: HEYDERMAN LAURA, DUFF GERARD, ZANIN DANILO, BRAUN HANS-BENJAMIN, HUEGLI REMO, CHOPDEKAR RAJESH, MENGOTTI ELENA
Format: Patent
Sprache:eng
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APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
ORIGINALS THEREFOR
PHOTOGRAPHY
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PHYSICS
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Zusammenfassung:A method is provided for achieving specific magnetic states with a given vortex chirality in artificial kagome spin ice building block structures containing one or more hexagonal rings of ferromagnetic islands created with electron beam lithography, where a subgroup of the ferromagnetic islands have a smaller width and therefore higher switching field than the other normal (wider) islands and are placed at specific positions in each of the rings. The positioning of the islands determines the magnetic state of the building block structure during magnetization reversal, and determines the chirality of the magnetic vortices that occur in each ring.