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Updated: May 22, 2025
08:12
Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
Published on: December 5, 2015
12.2K
Novel mixed topological state in monolayer MnSbO3
Yanzhao Wu1, Li Deng1, Junwei Tong2
1Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, 110819, China. zhangxm@atm.neu.edu.cn.
Physical Chemistry Chemical Physics : PCCP
|May 7, 2025
Summary
Researchers discovered a new ferromagnetic material, MnSbO3, exhibiting a tunable quantum anomalous Hall effect (QAH). This material
Area of Science:
- Condensed-matter physics
- Materials science
- Quantum physics
Background:
- The search for novel states of matter with unique properties is a key objective in condensed-matter physics.
- Quantum anomalous Hall effect (QAH) insulators are a class of materials exhibiting unique electronic properties.
Purpose of the Study:
- To investigate the topological properties of ferromagnetic monolayer MnSbO3.
- To explore the tunability of its topological state through magnetization direction.
Main Methods:
- Symmetry analysis
- First-principles calculations
Main Results:
- Monolayer MnSbO3 was identified as a quantum anomalous Hall effect (QAH) insulator.
- The topological state is tunable by altering the magnetization direction in the xy and xz planes.
- Chern numbers C = ±1 and C = ±3 were observed, along with mixed topological states.
Conclusions:
- Monolayer MnSbO3 exhibits a tunable topological state, making it a promising material for spintronic applications.
- The ability to regulate the topological phase by controlling magnetization direction offers new possibilities for topological devices.
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