Title:
STORAGE DEVICE, STORAGE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/171947
Kind Code:
A1
Abstract:
[Problem] To achieve a storage device that can operate at a higher speed with less current while reductions in the amplitude of readout signals are suppressed.
[Solution] A storage device includes a storage element, a wiring section, and a storage control section. The storage element includes a layer structure and is configured such that current can flow therethrough in the stacking direction of the layer structure, said layer structure including at least a storage layer with a magnetization orientation which changes for information, a fixed magnetization layer with a fixed magnetization orientation, and an intermediate layer formed from a non-magnetic material interposed between the storage layer and the magnetization fixing layer. The wiring section supplies current which flows in the stacking direction to the storage element. The storage control section causes standby current at a predetermined level to flow through the wiring section to the storage element so that the magnetization orientation of the storage layer is tilted with respect to a direction perpendicular to the film surface, and then, in this state, causes recording current which is at a greater level than that of the standby current to flow through the wiring section to change the magnetization direction of the storage layer and cause the storage layer to store information.
Inventors:
HIGO YUTAKA (JP)
HOSOMI MASANORI (JP)
OHMORI HIROYUKI (JP)
BESSHO KAZUHIRO (JP)
ASAYAMA TETSUYA (JP)
YAMANE KAZUTAKA (JP)
UCHIDA HIROYUKI (JP)
HOSOMI MASANORI (JP)
OHMORI HIROYUKI (JP)
BESSHO KAZUHIRO (JP)
ASAYAMA TETSUYA (JP)
YAMANE KAZUTAKA (JP)
UCHIDA HIROYUKI (JP)
Application Number:
PCT/JP2013/001377
Publication Date:
November 21, 2013
Filing Date:
March 06, 2013
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H01L21/8246; G11C11/15; H01L27/105; H01L29/82; H01L43/08
Foreign References:
| JP2007310949A | 2007-11-29 | |||
| JP2010109372A | 2010-05-13 | |||
| JP2012074716A | 2012-04-12 | |||
| JP2012059809A | 2012-03-22 | |||
| JP2004193595A | 2004-07-08 | |||
| JP2009081215A | 2009-04-16 | |||
| JP2011261522A | 2011-11-30 | |||
| JP2011261853A | 2011-11-30 | |||
| JP2010200983A | 2010-09-08 | |||
| JP2010201526A | 2010-09-09 |
Other References:
R. H. KOCH ET AL., PHYS. REV. LETT., vol. 92, 2004, pages 088302
See also references of EP 2851943A4
See also references of EP 2851943A4
Attorney, Agent or Firm:
OMORI, JUNICHI (JP)
Omori Junichi (JP)
Omori Junichi (JP)
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