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Title:
MAGNETIC DOMAIN WALL DISPLACEMENT-TYPE MAGNETIC RECORDING ELEMENT AND MAGNETIC RECORDING ARRAY
Document Type and Number:
WIPO Patent Application WO/2019/082323
Kind Code:
A1
Abstract:
This magnetic domain wall displacement-type magnetic recording element comprises: a first ferromagnetic layer containing a ferromagnetic body; a magnetic recording layer extending in a first direction orthogonal to the stacking direction of the first ferromagnetic layer and containing magnetic domain walls; and a nonmagnetic layer sandwiched between the first ferromagnetic layer and the magnetic recording layer. The magnetic recording layer includes recessed sections or protruding sections for trapping the magnetic domain walls on side surfaces thereof, and the width of the first ferromagnetic layer is narrower than the shortest width of the magnetic recording layer in a second direction which is orthogonal to the first direction when viewed from the stacking direction in plan view.

Inventors:
SHINOHARA Tetsuhito (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
SASAKI Tomoyuki (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
Application Number:
JP2017/038624
Publication Date:
May 02, 2019
Filing Date:
October 26, 2017
Export Citation:
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Assignee:
TDK CORPORATION (2-5-1, Nihonbashi Chuo-k, Tokyo 28, 〒1036128, JP)
International Classes:
H01L21/8239; G11C11/16; H01L27/105; H01L43/08
Attorney, Agent or Firm:
TANAI Sumio et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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