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:
Mar. 02, 2021
Filed:
Oct. 16, 2019
Korea Research Institute of Standards and Science, Daejeon, KR;
Kyoung-Woong Moon, Daejeon, KR;
Chan Yong Hwang, Seoul, KR;
Abstract
Disclosed is a method of forming a doughnut-shaped skyrmion, the method including heating a local area of a vertical magnetic thin film magnetized in a first direction, which is any one of an upward direction and a downward direction, applying a magnetic field having a second direction, which is opposite the first direction, and having intensity higher than coercive force of the vertical magnetic thin film to the vertical magnetic thin film to form a first area magnetized in the second direction, applying a magnetic field having the second direction to the vertical magnetic thin film to form a second area, which is an extension of the first area, and applying a magnetic field having the first direction to the vertical magnetic thin film to form a third area magnetized in the first direction in the second area.