Two-Dimensional Ferroelectric Altermagnets: From Model to Material Realization
University of Science and Technology of China · Eastern Institute of Technology · +4 more institutions
Abstract
Multiferroic altermagnets offer new opportunities for magnetoelectric coupling and electrically tunable spintronics. However, due to intrinsic symmetry conflicts between altermagnetism and ferroelectricity, achieving their coexistence, known as ferroelectric altermagnets (FEAM), remains an outstanding challenge, especially in two-dimensional (2D) systems. Here, we propose a universal, symmetry-based design principle for 2D FEAM, supported by tight-binding models and first-principles calculations. We show that lattice distortions can break the spin equivalence and introduce the necessary rotation-related symmetry, enabling altermagnetism with electrically reversible spin splitting. Guided by this framework, we…
Citation impact
- FWCI
- 17.67
- Percentile
- 100%
- References
- 61
Authors
6- ZZZiye Zhu
University of Science and Technology of China, Eastern Institute of Technology, Quantum Design (Germany)
- XDXunkai Duan
Eastern Institute of Technology, Shanghai Jiao Tong University
- JZJiayong Zhang
University of Science and Technology of China, Eastern Institute of Technology, Suzhou University of Science and Technology, Quantum Design (Germany)
- BHBowen Hao
Eastern Institute of Technology
- IŽIgor Žutić
University at Buffalo, State University of New York
Topics & keywords
- Ferroelectricity
- Realization (probability)
- Materials science
- Nanotechnology
- Computer science
- Optoelectronics
- Dielectric
- Mathematics