Title:
SPIN CURRENT MAGNETIZATION REVERSAL ELEMENT AND ELEMENT ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2018/061435
Kind Code:
A1
Abstract:
This spin current magnetization reversal element is provided with: a ferromagnetic metal layer; and a spin orbital torque wiring extending in a first direction that intersects the lamination direction of the ferromagnetic metal layer, and is joined to the ferromagnetic metal layer side. The orientation of the spin injected in the ferromagnetic metal layer from the spin orbital torque wiring intersects with respect to the orientation of the magnetization of the ferromagnetic metal layer. The ferromagnetic metal layer has shape anisotropy, and has distribution of a demagnetizing field according to the shape anisotropy. The distribution of the demagnetizing field generates an easy magnetization reversal direction for which the magnetization of the ferromagnetic metal layer most easily undergoes magnetization reversal, and the easy magnetization reversal direction intersects with the first direction in plan view from the lamination direction.
Inventors:
SHIBATA TATSUO (JP)
SASAKI TOMOYUKI (JP)
OIKAWA TOHRU (JP)
SASAKI TOMOYUKI (JP)
OIKAWA TOHRU (JP)
Application Number:
PCT/JP2017/026831
Publication Date:
April 05, 2018
Filing Date:
July 25, 2017
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01L29/82; H01L21/8239; H01L27/105; H01L43/08
Domestic Patent References:
| WO2016021468A1 | 2016-02-11 | |||
| WO2012127722A1 | 2012-09-27 |
Foreign References:
| JP2005303298A | 2005-10-27 | |||
| JP2005019457A | 2005-01-20 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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