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公开(公告)号：US12022744B2
公开(公告)日：2024-06-25
申请号：US17469502
申请日：2021-09-08
发明人： Sang Koog Kim , Jae Hak Yang , Yoon Jong Song , Kil Ho Lee , Jun Hoe Kim
CPC分类号： H10N50/85 , G11C11/161 , G11C11/1675 , H01F10/3286 , H10B61/00 , H10N50/80 , H10N52/00
摘要： A core magnetization reversal method includes transforming the first magnetic skyrmion into a skyrmionium by applying a first alternating current (AC) magnetic field to the first magnetic skyrmion, and then transforming the skyrmionium into a second magnetic skyrmion by applying a second AC magnetic field to the skyrmionium. The first magnetic skyrmion may be formed on a hemispherical shell, which may be formed by (i) preparing a membrane having a plurality of protrusions, and (ii) stacking, on the membrane, a first layer including at least one of platinum (Pt), nickel (Ni), and palladium (Pd), and a second layer including a ferromagnetic material. The first and second AC magnetic fields may have different frequencies.
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公开(公告)号：US12080941B2
公开(公告)日：2024-09-03
申请号：US17523027
申请日：2021-11-10
发明人： Sang Koog Kim , Young Jun Cho , Gwan Hyeob Koh , Kil Ho Lee , Jun Hoe Kim
CPC分类号： H01Q1/38 , G11C11/16 , H01F10/14 , H01F38/14 , H04B5/26 , H01F2038/143 , H04L27/2636
摘要： A signal transferring device includes a first structure that includes a first magnetic thin film structure having a first magnetic vortex configured to receive a signal as an input signal, a second structure that is spaced apart from at least one side of the first structure, the second structure including a second magnetic thin film structure having a second magnetic vortex configured to transfer the signal, and a third structure that is spaced apart from at least one side of the second structure, the third structure including a third magnetic thin film structure having a third magnetic vortex configured to output the signal from the signal transferring device. The first and third structures have a symmetrical shape and the second structure has an asymmetrical shape.
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