期刊
NANO LETTERS
卷 23, 期 9, 页码 3818-3825出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.3c00231
关键词
spin; orbit torque; spin logic device; flexible device; magnetization switching
This research demonstrates a type of nonvolatile, low power dissipation, and programmable flexible spin logic device based on spin-orbit torque. The device has stable performance and the magnetization switching ratio does not change after bending 100 times. It can realize five Boolean logic gates and can be transferred to various substrates while maintaining high performance. The flexible spin logic device has applications in wearable electronics.
Flexible electronic devices have shown increasingly promising value facilitating our daily lives. However, flexible spintronic devices remain in their infancy. Here, this research demonstrates a type of nonvolatile, low power dissipation, and programmable flexible spin logic device, which is based on the spin-orbit torque in polyimide (PI)/Ta/Pt/Co/Pt heterostructures fabricated via capillary-assisted electrochemical delamination. The magnetization switching ratio is shown to be about 50% for the flexible device and does not change after 100 cycles of bending, indicating the device has stable performance. By designing the path of pulse current, five Boolean logic gates AND, NAND, NOT, NOR, and OR can be realized in an integrated two-element device. Moreover, such peeling-off devices can be successfully transferred to almost any substrate, such as paper and human skin, and maintain high performance. The flexible PI/Ta/Pt/Co/Pt spin logic device serves as logic-in-memory architecture and can be used in wearable electronics.
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