Magnetic Structure-Dependent Spin Texture Lattice in Hexagonal MnFeCoGe Magnets
Topological spin textures are of great significance in magnetic information storage and spintronics due to their high storage density and low drive current. In this work, the transformation of magnetic configuration from chaotic labyrinth domains to uniform stripe domains was observed in MnFe<sub>1-<i>x</i></sub>Co<sub><i>x</i></sub>Ge magnets. This change occurs due to the noncollinear magnetic structure switching to a uniaxial ferromagnetic structure with increasing Co content, as identified by neutron diffraction results and Lorentz transmission electron microscopy (L-TEM). Of utmost importance, a hexagonal lattice of high-density robust type-II magnetic bubble lattice was established for <i>x</i> = 0.8 through out-of-plane magnetic field stimulation and field-cooling. The dimensions of the type-II magnetic bubbles were found to be tuned by the sample thickness. Therefore, the stabilization of complex magnetic spin textures, associated with enhanced uniaxial ferromagnetic interaction and magnetic dipole-dipole interaction in MnFe<sub>1-<i>x</i></sub>Co<sub><i>x</i></sub>Ge through magnetic structure manipulation, as further confirmed by the micromagnetic simulations, will provide a convenient and efficient strategy for designing topological spin textures with potential applications in spintronic devices.
Authors
- Shouguo Wang (ORCID: https://orcid.org/0000-0002-4488-2645)
- Yipeng Zang (ORCID: https://orcid.org/0000-0001-6572-0939)
- Jiawang Xu (ORCID: https://orcid.org/0000-0001-7387-4380)
- Haifeng Du (ORCID: https://orcid.org/0000-0003-4263-5023)
- Baogen Shen (ORCID: https://orcid.org/0000-0003-4819-1806)
- Xinqi Zheng (ORCID: https://orcid.org/0000-0002-1894-4910)
- Juping Xu (ORCID: https://orcid.org/0000-0002-9576-8391)
- Bin Bao (ORCID: https://orcid.org/0000-0001-7610-3426)
- Mengmeng Yang (ORCID: https://orcid.org/0000-0002-3004-8991)
- Yawei Gao (ORCID: https://orcid.org/0000-0002-2567-2853)
- Lei Xi
- Guyue Wang
- Tianping Ma (ORCID: https://orcid.org/0000-0003-0804-019X)
- Dingsong Wang
- Jingyan Zhang (ORCID: https://orcid.org/0000-0003-0012-6191)
- Shihao Li (ORCID: https://orcid.org/0009-0001-2182-2746)
- Wen Hui Yin (ORCID: https://orcid.org/0000-0002-7110-9471)
- Zhonghao Zhou
- Liming Wang (ORCID: https://orcid.org/0009-0006-9768-3910)
- Shiming Zhou (ORCID: https://orcid.org/0000-0003-3280-2473)
- Shouyuan Xing
- Junchao Sheng
- Xucai Kan (ORCID: https://orcid.org/0000-0002-5430-9519)
- Ying Zhang (ORCID: https://orcid.org/0000-0001-5476-1524)
Institutions
- Anhui University (CN)
- Chinese Academy of Sciences (CN)
- Hefei Institutes of Physical Science (CN)
- High Magnetic Field Laboratory (CN)
- China Spallation Neutron Source (CN)
- Institute of High Energy Physics (CN)
- Institute of Physics (CN)
- University of Science and Technology Beijing (CN)
Publication Details
- Journal
- ACS Nano
- Published
- 2024-08-21
- DOI
- https://doi.org/10.1021/acsnano.4c08703
- Citations
- 5
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 1.69
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China