中国物理B ›› 2026, Vol. 35 ›› Issue (2): 27501-027501.doi: 10.1088/1674-1056/ae2c6b

• • 上一篇    

Magnetoelectric topology: The rope weaving in parameter space

Ying Zhou(周颖), Ziwen Wang(王子文), Fan Wang(王凡), Haoshen Ye(叶浩燊), and Shuai Dong(董帅)†   

  1. Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, China
  • 收稿日期:2025-10-13 修回日期:2025-11-27 接受日期:2025-12-15 发布日期:2026-01-21
  • 通讯作者: Shuai Dong E-mail:sdong@seu.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 12325401, 12274069, and 123B2053). We thank Profs. Yisheng Chai, Chenliang Lu, and Junting Zhang for their contributions to the original works reviewed here.

Magnetoelectric topology: The rope weaving in parameter space

Ying Zhou(周颖), Ziwen Wang(王子文), Fan Wang(王凡), Haoshen Ye(叶浩燊), and Shuai Dong(董帅)†   

  1. Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, China
  • Received:2025-10-13 Revised:2025-11-27 Accepted:2025-12-15 Published:2026-01-21
  • Contact: Shuai Dong E-mail:sdong@seu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 12325401, 12274069, and 123B2053). We thank Profs. Yisheng Chai, Chenliang Lu, and Junting Zhang for their contributions to the original works reviewed here.

摘要: Topology, as a mathematical concept, has been introduced into condensed matter physics since the discovery of quantum Hall effect, which characterizes new physical scenario beyond the Landau theory. The topologically protected physical quantities, such as the dissipationless quantum transport of edge/surface states as well as magnetic/dipole quasi-particles like skyrmions/bimerons, have attracted great research enthusiasms in the past decades. In recent years, another kind of topology in condensed matter was revealed in the magnetoelectric parameter space of multiferroics, which deepens our understanding of magnetoelectric physics. This topical review summarizes recent advances in this area, involving three types of type-II multiferroics. With magnetism-induced ferroelectricity, topological behaviors can be manifested during the magnetoelectric switching processes driven by magnetic/electric fields, such as Roman-surface/Riemann-surface magnetoelectricity and magnetic crankshaft. These exotic topological magnetoelectric behaviors may be helpful to pursue energy-efficient and precise-control devices for spintronics and quantum computing.

关键词: magnetoelectricity, topology, winding number, multiferroicity

Abstract: Topology, as a mathematical concept, has been introduced into condensed matter physics since the discovery of quantum Hall effect, which characterizes new physical scenario beyond the Landau theory. The topologically protected physical quantities, such as the dissipationless quantum transport of edge/surface states as well as magnetic/dipole quasi-particles like skyrmions/bimerons, have attracted great research enthusiasms in the past decades. In recent years, another kind of topology in condensed matter was revealed in the magnetoelectric parameter space of multiferroics, which deepens our understanding of magnetoelectric physics. This topical review summarizes recent advances in this area, involving three types of type-II multiferroics. With magnetism-induced ferroelectricity, topological behaviors can be manifested during the magnetoelectric switching processes driven by magnetic/electric fields, such as Roman-surface/Riemann-surface magnetoelectricity and magnetic crankshaft. These exotic topological magnetoelectric behaviors may be helpful to pursue energy-efficient and precise-control devices for spintronics and quantum computing.

Key words: magnetoelectricity, topology, winding number, multiferroicity

中图分类号:  (Magnetoelectric effects, multiferroics)

  • 75.85.+t
77.80.-e (Ferroelectricity and antiferroelectricity) 75.50.-y (Studies of specific magnetic materials)