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Spin-orbit torque driven four-state switching in splicing structure
Song, Yuhang; Zhao, Xiaotian; Liu, Wei; Liu, Long; Li, Shangkun; Zhang, Zhidong
2020-12-07
Source PublicationAPPLIED PHYSICS LETTERS
Volume117Issue:23
AbstractWe prepared a splicing structure by using electron beam lithography, in which Pt and Ta were spliced together as the spin source upon perpendicularly magnetized Pt/Co/Pt heterostructures. It is found that Pt and Ta can modulate both spin-orbit torque and Dzyaloshinskii-Moriya interaction on the same magnetic layer, respectively. The four-state magnetization switching is achieved with the combinations of two spliced parts, which is observed by using a magneto-optical Kerr microscope. The initial nucleation position determines the chirality. The Pt side stabilizes a right-hand Neel domain wall and the Ta side stabilizes a left-hand Neel domain wall. Our study provides a method for further increasing the storage density and studying spin-orbit torque laterally.
DOI10.1063/5.0035496
WOS IDWOS:000598485500003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82309
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Song, Yuhang,Zhao, Xiaotian,Liu, Wei,et al. Spin-orbit torque driven four-state switching in splicing structure[J]. APPLIED PHYSICS LETTERS,2020,117(23).
APA Song, Yuhang,Zhao, Xiaotian,Liu, Wei,Liu, Long,Li, Shangkun,&Zhang, Zhidong.(2020).Spin-orbit torque driven four-state switching in splicing structure.APPLIED PHYSICS LETTERS,117(23).
MLA Song, Yuhang,et al."Spin-orbit torque driven four-state switching in splicing structure".APPLIED PHYSICS LETTERS 117.23(2020).
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