SKYRMION GENERATION DEVICE, SKYRMION GENERATION METHOD, AND MAGNETIC MEMORY DEVICE

Title:

SKYRMION GENERATION DEVICE, SKYRMION GENERATION METHOD, AND MAGNETIC MEMORY DEVICE

Document Type and Number:

WIPO Patent Application WO/2016/158230

Kind Code:

A1

Abstract:

Provided is a skyrmion generation method in which the power consumed during generation of skyrmions can be reduced. In this skyrmion generation method, an electric field is locally applied to an insulating magnetic body 12 having a chiral crystal structure using an electric field generator 16 while a magnetic field from a magnetic field generator 14 is applied to the magnetic body 12. Skyrmions are thereby generated inside the magnetic body 12. The magnetic body 12 preferably assumes the form of a thin film having, at least partially, a thickness of 2-300 nm. The magnetic field generator 14 preferably applies the magnetic field to the surface of the magnetic body 12 in a substantially perpendicular direction.

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Inventors:

MOCHIZUKI MASAHITO (JP)

Application Number:

PCT/JP2016/057073

Publication Date:

October 06, 2016

Filing Date:

March 08, 2016

Export Citation:

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Assignee:

JAPAN SCIENCE & TECH AGENCY (JP)

International Classes:

H01L43/08; G11B5/02; G11B5/65; H01L21/8246; H01L27/105

Foreign References:

JP2014078560A	2014-05-01
JP2014086470A	2014-05-12

Other References:

YOSHINORI TOKURA ET AL., KENKYU SAIZENSEN ATARASHII DENJIKIGAKU O KIRIHIRAKU SKYRMION RIKEN NEWS, vol. 404, 5 February 2015 (2015-02-05), pages 02 - 13
MASAHIRO MOCHIZUKI: "How to Write, Delete, and Drive Skyrmions", MAGNETICS JAPAN, vol. 10, no. 4, 1 August 2015 (2015-08-01), pages 192 - 198, ISSN: 0882-4959