Discovery of Topological Magnetic Textures near Room Temperature in Quantum Magnet TbMn6Sn6

Author:

Li Zhuolin12,Yin Qiangwei3,Jiang Yi12,Zhu ZhaoZhao124,Gao Yang125,Wang Shouguo5,Shen Jun6,Zhao Tongyun12,Cai Jianwang12,Lei Hechang3,Lin Shi‐Zeng7,Zhang Ying124ORCID,Shen Baogen128

Affiliation:

1. Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China

2. School of Physical Sciences University of Chinese Academy of Sciences Beijing 101408 China

3. Laboratory for Neutron Scattering Beijing Key Laboratory of Opto‐Electronic Functional Materials & Micro‐Nano Devices Department of Physics Renmin University of China Beijing 100872 China

4. Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China

5. School of Materials Science and Engineering Anhui University Hefei 230601 China

6. Department of Energy and Power Engineering School of Mechanical Engineering Beijing Institute of Technology Beijing 100081 China

7. Theoretical Division and Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos NM 87545 USA

8. Ningbo Institute of Materials Technology & Engineering Chinese Academy of Sciences Ningbo Zhejiang 315201 China

Abstract

AbstractThe study of topology in quantum materials has fundamentally advanced the understanding in condensed matter physics and potential applications in next‐generation quantum information technology. Recently, the discovery of a topological Chern phase in the spin–orbit‐coupled Kagome lattice TbMn6Sn6 has attracted considerable interest. Whereas these phenomena highlight the contribution of momentum space Berry curvature and Chern gap on the electronic transport properties, less is known about the intrinsic real space magnetic texture, which is crucial for understanding the electronic properties and further exploring the unique quantum behavior. Here, the stabilization of topological magnetic skyrmions in TbMn6Sn6 using Lorentz transmission electron microscopy near room temperature, where the spins experience full spin reorientation transition between the a‐ and c‐axes, is directly observed. An effective spin Hamiltonian based on the Ginzburg–Landau theory is constructed and micromagnetic simulation is performed to clarify the critical role of Ruderman–Kittel–Kasuya–Yosida interaction on the stabilization of skyrmion lattice. These results not only uncover nontrivial spin topological texture in TbMn6Sn6, but also provide a solid basis to study its interplay with electronic topology.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Beijing Municipality

Publisher

Wiley

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Research progress in the magnetic domain wall topology;Acta Physica Sinica;2024

2. Quantum interactions in topological R166 kagome magnet;Reports on Progress in Physics;2023-10-09

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