Title:
OPERATION METHOD OF NEURAL NETWORK ELEMENT USING SPIN-ORBIT TORQUE
Document Type and Number:
WIPO Patent Application WO/2020/141848
Kind Code:
A1
Abstract:
Disclosed is an operation method of a neural network element using a Hall voltage. The neural network element has a hole pattern portion, and the hole pattern portion has a cross shape. When a pulse current is applied, horizontal magnetic anisotropy is formed in a ferromagnetic layer by means of spin-orbit torque, and when an external magnetic field in a direction perpendicular to the pulse current is applied, the inversion of magnetization occurs by means of additional torque. The movement of a magnetic domain wall is performed by the inversion of magnetization, spin electrons applied thereby are scattered, and a Hall voltage is generated according to the anomalous Hall effect. The generated Hall voltage increases according to the number of applications of the pulse current or pulse voltage.
Inventors:
HONG JIN PYO (KR)
YANG SEUNG MO (KR)
YANG SEUNG MO (KR)
Application Number:
PCT/KR2019/018778
Publication Date:
July 09, 2020
Filing Date:
December 31, 2019
Export Citation:
Assignee:
UNIV HANYANG IND UNIV COOP FOUND (KR)
International Classes:
G06N3/063; H01L43/08; H01L43/10; H01L43/12
Domestic Patent References:
| WO2017214628A1 | 2017-12-14 |
Foreign References:
| KR20180045302A | 2018-05-04 | |||
| US20170249550A1 | 2017-08-31 | |||
| US20170330070A1 | 2017-11-16 | |||
| US9379162B2 | 2016-06-28 |
Attorney, Agent or Firm:
E-SANG PATENT & TRADEMARK LAW FIRM (KR)
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