Title:
ORIENTED BODY, METHOD FOR MANUFACTURING SAME, DEVICE FOR MANUFACTURING SAME, AND MAGNETIC RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2017/094752
Kind Code:
A1
Abstract:
Provided are an oriented body and a technique relating to the same, the oriented body including particles of a platinum-group-substituted ε iron oxide such as Rh-substituted ε iron oxide or Ru-substituted ε iron oxide and being suitable for MAMR, MIMR, or F-MIMR. Provided are an oriented body and a technique relating to the same, the oriented body including, as magnetic particles, particles of a platinum-group-substituted ε iron oxide in which a portion of the ε iron oxide is substituted by at least one species of platinum-group element, the coercivity of the oriented body exceeding 31 kOe, and the value of the degree of orientation of the magnetic particles exceeding 5.0 as defined by the expression: Degree of orientation = SQ (Direction of easy axis of magnetization)/SQ (Direction of hard axis of magnetization).
Inventors:
OHKOSHI SHIN-ICHI (JP)
IMOTO KENTA (JP)
ANAN SHIZUKA (JP)
NAMAI ASUKA (JP)
MASADA KENJI (JP)
IMOTO KENTA (JP)
ANAN SHIZUKA (JP)
NAMAI ASUKA (JP)
MASADA KENJI (JP)
Application Number:
PCT/JP2016/085493
Publication Date:
June 08, 2017
Filing Date:
November 30, 2016
Export Citation:
Assignee:
UNIV TOKYO (JP)
DOWA ELECTRONICS MATERIALS CO (JP)
DOWA ELECTRONICS MATERIALS CO (JP)
International Classes:
G11B5/706; C01G49/00; C01G55/00; G11B5/02; G11B5/852; H01F1/11
Domestic Patent References:
| WO2011040534A1 | 2011-04-07 |
Foreign References:
| JP2009206376A | 2009-09-10 | |||
| JP2008063201A | 2008-03-21 | |||
| JP2015082329A | 2015-04-27 | |||
| JP2016135737A | 2016-07-28 | |||
| JP5124825B2 | 2013-01-23 |
Other References:
A. NAMAI; M. YOSHIKIYO; K. YAMADA; S. SAKURAI; T. GOTO; T. YOSHIDA; T. MIYAZAKI; M. NAKAJIMA; T. SUEMOTO; H. TOKORO, NATURE COMMUNICATIONS, vol. 3, 2012, pages 1035
See also references of EP 3385951A4
See also references of EP 3385951A4
Attorney, Agent or Firm:
ANIYA Setuo et al. (JP)
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