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Direct observation of the topological spin configurations mediated by the substitution of rare-earth element Y in MnNiGa alloy.
Zuo, S L; Zhang, Y; Peng, L C; Zhao, X; Li, R; Li, H; Xiong, J F; He, M; Zhao, T Y; Sun, J R; Hu, F X; Shen, B G.
Affiliation
  • Zuo SL; State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China. shenbg@iphy.ac.cn zhangy@iphy.ac.cn.
Nanoscale ; 10(5): 2260-2266, 2018 Feb 01.
Article in En | MEDLINE | ID: mdl-29350742
The evolution of topological magnetic domains microscopically correlates the dynamic behavior of memory units in spintronic application. Nanometric bubbles with variation of spin configurations have been directly observed in a centrosymmetric hexagonal magnet (Mn0.5Ni0.5)65(Ga1-yYy)35 (y = 0.01) using Lorentz transmission electron microscopy. Magnetic bubbles instead of biskyrmions are generated due to the enhancement of quality factor Q caused by the substitution of rare-earth element Y. Furthermore, the bubble density and diversified spin configurations are systematically manipulated via combining the electric current with perpendicular magnetic fields. The magnetic bubble lattice at zero field is achieved after the optimized manipulation.

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nanoscale Year: 2018 Document type: Article

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nanoscale Year: 2018 Document type: Article