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公开(公告)号：US20220384717A1
公开(公告)日：2022-12-01
申请号：US17469502
申请日：2021-09-08
Inventor： Sang Koog KIM , Jae Hak YANG , Yoon Jong SONG , Kil Ho LEE , Jun Hoe KIM
Abstract: 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：US20220158337A1
公开(公告)日：2022-05-19
申请号：US17523027
申请日：2021-11-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sang Koog KIM , Young Jun CHO , Gwan Hyeob KOH , Kil Ho LEE , Jun Hoe KIM
Abstract: 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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