Title:
MAGNETIC MEMORY CELL AND MAGNETIC RANDOM ACCESS MEMORY
Document Type and Number:
WIPO Patent Application WO/2012/004882
Kind Code:
A1
Abstract:
Disclosed is a magnetic random access memory for spin torque magnetization reversal applications, which is thermally stable during reading and has a reduced current during writing.
A permanent magnet layer (504, 510) having magnetization in a direction opposite to the direction of the magnetization of a fixed layer is arranged on the top and bottom of a magnetoresistance effect element, wherein the magnetoresistance effect element comprises a recording layer (506) which has magnetization in a direction perpendicular to the film surface, a fixed layer (508) of which the magnetization is fixed in one direction that is perpendicular to the film surface, and a non-magnetic barrier layer (507) which is formed between the fixed layer and the recording layer.
Inventors:
OHNO Hideo (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
大野 英男 (〒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)
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)
ITO Kenchi (Hitachi Ltd., 2520, Akanuma, Hatoyama-machi, Hiki-gu, Saitama 95, 〒3500395, JP)
大野 英男 (〒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)
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)
ITO Kenchi (Hitachi Ltd., 2520, Akanuma, Hatoyama-machi, Hiki-gu, Saitama 95, 〒3500395, JP)
Application Number:
JP2010/061667
Publication Date:
January 12, 2012
Filing Date:
July 09, 2010
Export Citation:
Assignee:
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)
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)
OHNO Hideo (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
大野 英男 (〒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)
IKEDA Shoji (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)
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)
OHNO Hideo (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
大野 英男 (〒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)
IKEDA Shoji (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
International Classes:
H01L21/8246; G11C11/15; H01L27/105; H01L43/08
Attorney, Agent or Firm:
HIRAKI Yusuke (Kamiya-cho MT Bldg. 19F, 3-20 Toranomon 4-chome, Minato-k, Tokyo 01, 〒1050001, JP)
Claims:
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