Direct observation of the topological spin configurations mediated by the substitution of rare-earth element Y in MnNiGa alloy,Nanoscale

当前位置： X-MOL 学术 › Nanoscale › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Direct observation of the topological spin configurations mediated by the substitution of rare-earth element Y in MnNiGa alloy
Nanoscale ( IF 5.8 ) Pub Date : 2018-01-19 00:00:00 , DOI: 10.1039/c7nr08997j
S. L. Zuo _{1,

2,

3,

4,

5} , Y. Zhang _{1,

2,

3,

4,

5} , L. C. Peng _{1,

2,

3,

4,

5} , X. Zhao _{1,

2,

3,

4,

5} , R. Li _{1,

2,

3,

4,

5} , H. Li _{1,

2,

3,

4,

5} , J. F. Xiong _{1,

2,

3,

4,

5} , M. He _{1,

2,

3,

4,

5} , T. Y. Zhao _{1,

2,

3,

4,

5} , J. R. Sun _{1,

2,

3,

4,

5} , F. X. Hu _{1,

2,

3,

4,

5} , B. G. Shen _{1,

2,

3,

4,

5}

Affiliation

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 (Mn_0.5Ni_0.5)₆₅(Ga_1−yY_y)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.

中文翻译：

直接观察由MnNiGa合金中稀土元素Y替代介导的拓扑自旋构型

拓扑磁域的演变在微观上与自旋电子学应用中存储单元的动态行为相关。使用洛伦兹透射电子显微镜在中心对称六边形磁体（Mn _0.5 Ni _0.5）₆₅（Ga _{1- y} Y _y）₃₅（y = 0.01）中直接观察到了具有自旋构型变化的纳米气泡。由于稀土元素Y的替代导致品质因数Q的提高，产生了磁气泡而不是双金属离子。此外，可通过以下方式系统地操纵气泡密度和多样化的自旋构型：结合电流和垂直磁场。经过优化处理后，可实现零场处的磁气泡晶格。

更新日期：2018-01-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11