Title:
MAGNETIC ELEMENT AND SKYRMION MEMORY
Document Type and Number:
WIPO Patent Application WO/2015/125708
Kind Code:
A1
Abstract:
A thin layer-shaped magnetic element (10) is able to produce a skyrmion (S), and is provided with a thin layer-shaped lower magnetic body (111), and a current circuit (112) provided to surround a predetermined region (A) including an end of the lower magnetic body (111) on one surface side of the lower magnetic body (111). When the width is denoted by Wm and the height is denoted by hm, the lower magnetic body (111) may have a size that satisfies 2λ>Wm>λ/2 and 2λ>hm>λ/2 with respect to the diameter (λ) of the produced skyrmion (S). When the width of the predetermined region (A) is denoted by W, and the height thereof is denoted by h, the current circuit (112) may be provided so as to surround the predetermined region (A) that satisfies λ≥W>λ/4 and 2λ>h>λ/2.
Inventors:
NAGAOSA NAOTO (JP)
KOSHIBAE WATARU (JP)
IWASAKI JUNICHI (JP)
KAWASAKI MASASHI (JP)
KANEKO YOSHIO (JP)
TOKURA YOSHINORI (JP)
KOSHIBAE WATARU (JP)
IWASAKI JUNICHI (JP)
KAWASAKI MASASHI (JP)
KANEKO YOSHIO (JP)
TOKURA YOSHINORI (JP)
Application Number:
PCT/JP2015/053994
Publication Date:
August 27, 2015
Filing Date:
February 13, 2015
Export Citation:
Assignee:
RIKEN (JP)
International Classes:
H01L29/82; H01L21/8246; H01L27/105
Foreign References:
| JP2014086470A | 2014-05-12 |
Other References:
X.Z.YU ET AL.: "Current-driven skyrmion motion and its dynamical observation", ABSTRACTS OF THE MEETING OF THE PHYSICAL SOCIETY OF JAPAN, vol. 68, 3, no. 2, 26 August 2013 (2013-08-26), pages 417
X.Z.YU ET AL.: "Biskyrmion states and their current-driven motion in a layered manganite", NATURE COMMUNICATIONS, vol. 5, no. 3198, 28 January 2014 (2014-01-28), pages 1 - 7, XP055219431
NAOTO NAGAOSA ET AL.: "Topological properties and dynamics of magnetic skyrmions", NATURE NANOTECHNOLOGY, vol. 8, no. 12, 4 December 2013 (2013-12-04), pages 899 - 911, XP055221434, ISSN: 1748-3387
X.Z.YU ET AL.: "Biskyrmion states and their current-driven motion in a layered manganite", NATURE COMMUNICATIONS, vol. 5, no. 3198, 28 January 2014 (2014-01-28), pages 1 - 7, XP055219431
NAOTO NAGAOSA ET AL.: "Topological properties and dynamics of magnetic skyrmions", NATURE NANOTECHNOLOGY, vol. 8, no. 12, 4 December 2013 (2013-12-04), pages 899 - 911, XP055221434, ISSN: 1748-3387
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Ryuka international patent business corporation (JP)
Ryuka international patent business corporation (JP)
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