Magnetic element, skyrmion memory, skyrmion memory device, skyrmion-memory embedded solid-state electronic device, data storage apparatus, data processing and communication apparatus


Ontology type: sgo:Patent     


Patent Info

DATE

2018-06-19T00:00

AUTHORS

Naoto Nagaosa , Wataru Koshibae , Junichi Iwasaki , Masashi Kawasaki , Yoshinori Tokura , Yoshio Kaneko

ABSTRACT

Provided is a magnetic element capable of generating one skyrmion and erasing the one skyrmion. The magnetic element includes a magnet shaped like a substantially rectangular flat plate, an upstream electrode connected to the magnet in a width Wm direction of the magnet and made of a non-magnetic metal, a downstream electrode connected to the magnet in the width Wm direction to oppose the upstream electrode and made of a non-magnetic metal, and a skyrmion sensor configured to detect the skyrmion. Here, a width Wm of the substantially rectangular magnet is such that 3·λ>Wm≥λ, where λ denotes a diameter of the skyrmion, a length Hm of the substantially rectangular magnet is such that 2·λ>Hm≥λ, and the magnet has a notch structure at the edge between the upstream electrode and the downstream electrode. More... »

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