Title:
LOW POWER TERAHERTZ MAGNETIC NANO OSCILLATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/177204
Kind Code:
A1
Abstract:
A magnetic nano oscillating device, according to an embodiment of the present invention, comprises: a ferromagnetic layer disposed on a substrate; a non-magnetic conductive layer laminated on the ferromagnetic layer; an antiferromagnetic layer (or a ferrimagnetic layer) laminated on the non-magnetic conductive layer; and first and second electrodes respectively contacting both side surfaces of the ferromagnetic layer and the non-magnetic conductive layer. The antiferromagnetic layer (or ferrimagnetic layer) is a thin film made of a material magnetized perpendicularly or horizontally to a film surface, the ferromagnetic layer is magnetized horizontally to a film surface of the ferromagnetic layer, and an in-plane current injected into the ferromagnetic layer and the non-magnetic conductive layer through the first and second electrodes provides a spin current including a spin in a thickness direction of the thin film transferred to the antiferromagnetic layer (or ferrimagnetic layer), thereby causing magnetization precessional motion of a sub-lattice of the antiferromagnetic layer (or ferrimagnetic layer).
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Inventors:
LEE KYUNG-JIN (KR)
PARK BYONG GUK (KR)
LEE DONG-KYU (KR)
PARK BYONG GUK (KR)
LEE DONG-KYU (KR)
Application Number:
PCT/KR2018/007449
Publication Date:
September 19, 2019
Filing Date:
June 29, 2018
Export Citation:
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
H01L43/08; H01L43/02; H01L43/10
Domestic Patent References:
| WO2015102739A2 | 2015-07-09 |
Foreign References:
| JP2011101015A | 2011-05-19 | |||
| KR20060039748A | 2006-05-09 | |||
| KR20160134598A | 2016-11-23 | |||
| US20150041934A1 | 2015-02-12 |
Other References:
See also references of EP 3767693A4
Attorney, Agent or Firm:
NURY PATENT LAW FIRM (KR)
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