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Title:
MAGNETO-RESISTANCE EFFECT ELEMENT AND RANDOM ACCESS MEMORY USING SAME
Document Type and Number:
WIPO Patent Application WO/2010/137679
Kind Code:
A1
Abstract:
Disclosed is a magneto-resistance effect element with a high TMR ratio, to which a perpendicular magnetization material is applied. Laminated ferri-structures (51, 52) each composed of a perpendicular magnetization magnetic layer (21, 22) and a high-polarizability magnetic layer (41, 42) are applied as a recording layer and a stern layer which are arranged above and below a barrier layer (10), respectively. Each of non-magnetic layers (31, 32) is inserted between the perpendicular magnetization magnetic layer and the high-polarizability magnetic layer to improve the crystallinity of the perpendicular magnetization magnetic layers, and the (001) crystal orientation of the MgO barrier layer (10) and the bcc (001) crystal orientation of the high-polarizability magnetic layer (41, 42) are conducted.

Inventors:
IKEDA Shoji (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
池田正二 (〒77 宮城県仙台市青葉区片平二丁目1番1号 国立大学法人東北大学内 Miyagi, 〒9808577, JP)
SHIMAZU Takehito (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
島津武仁 (〒77 宮城県仙台市青葉区片平二丁目1番1号 国立大学法人東北大学内 Miyagi, 〒9808577, JP)
OHNO Hideo (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
Application Number:
JP2010/059066
Publication Date:
December 02, 2010
Filing Date:
May 28, 2010
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
株式会社日立製作所 (〒80 東京都千代田区丸の内一丁目6番6号 Tokyo, 〒1008280, JP)
TOHOKU UNIVERSITY (2-1-1, Katahira Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
国立大学法人東北大学 (〒77 宮城県仙台市青葉区片平二丁目1番1号 Miyagi, 〒9808577, JP)
IKEDA Shoji (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
池田正二 (〒77 宮城県仙台市青葉区片平二丁目1番1号 国立大学法人東北大学内 Miyagi, 〒9808577, JP)
SHIMAZU Takehito (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
International Classes:
H01L43/08; H01F10/16; H01F10/32; H01L21/8246; H01L27/105; H01L29/82
Attorney, Agent or Firm:
HIRAKI Yusuke (Kamiya-cho MT Bldg. 19F, 3-20 Toranomon 4-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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