METHOD OF FORMING DOUGHNUT-SHAPED SKYRMION

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 opp...

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Bibliographische Detailangaben
Hauptverfasser:	Hwang, Chan Yong, Moon, Kyoung-Woong
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRICITY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	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.