Title:
STORAGE MEDIUM, RECORDING DEVICE, DATA PROCESSING DEVICE, DATA RECORDING DEVICE, AND COMMUNICATIONS DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/021403
Kind Code:
A1
Abstract:
A hard disk having an increased-density magnetic dot pattern, that prevents side erase. Provided is a storage medium comprising: a thin-layer magnetic body capable of generating and erasing skyrmions; a non-magnetic body provided so as to encircle the thin-layer magnetic body; and a magnetic field-generating unit facing a first surface of the magnetic body and being capable of applying a first magnetic field to the first surface of the magnetic body. The size of the flat surface of the thin-layer magnetic body fulfils 2λ > Wm > 0.5·λ and 2λ > hm > 0.5·λ relative to the diameter λ of the skyrmions generated by the thin-layer magnetic body, when the width of the flat surface is Wm and the height is hm.
Inventors:
NAGAOSA NAOTO (JP)
KOSHIBAE WATARU (JP)
IWASAKI JUNICHI (JP)
KAWASAKI MASASHI (JP)
TOKURA YOSHINORI (JP)
KANEKO YOSHIO (JP)
KOSHIBAE WATARU (JP)
IWASAKI JUNICHI (JP)
KAWASAKI MASASHI (JP)
TOKURA YOSHINORI (JP)
KANEKO YOSHIO (JP)
Application Number:
PCT/JP2015/070715
Publication Date:
February 11, 2016
Filing Date:
July 21, 2015
Export Citation:
Assignee:
RIKEN (JP)
International Classes:
G11B5/65; G11B5/012; G11B5/02; G11B5/738; H01F10/14
Foreign References:
| JP2014086470A | 2014-05-12 | |||
| JP2014078637A | 2014-05-01 | |||
| JP2014078560A | 2014-05-01 | |||
| JP2005293768A | 2005-10-20 | |||
| JPH08297880A | 1996-11-12 | |||
| JP2014175417A | 2014-09-22 |
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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