The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2024
Filed:
Jun. 23, 2020
Industry-university Cooperation Foundation Hanyang University, Seoul, KR;
Jin Pyo Hong, Seoul, KR;
Abstract
Disclosed are a synthetic antiferromagnetic material using the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction and a multibit memory using the synthetic antiferromagnetic material that is formed. The synthetic antiferromagnetic material has a non-magnetic metal layer as an RKKY inducing layer in the center, interaction between upper and lower ferromagnetic layers is imparted according to the thickness of the RKKY inducing layer, and the magnetization of an anti-parallel state is maximized therebetween. When such synthetic antiferromagnetic materials are cumulatively stacked and tunnel barrier layers are provided therebetween, multiple bits can be stored. Namely, data may be stored by supplying a program current in parallel to the surface of the RKKY inducing layer, and a resistance state may be checked by supplying current in a vertical direction to the surface of the RKKY inducing layer.