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Updated: Aug 28, 2025
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Published on: July 18, 2025
Two-Dimensional Van Der Waals Topological Materials: Preparation, Properties, and Device Applications
Gaojie Zhang1,2, Hao Wu1,2, Liang Zhang3
1Quantum-Nano Matter and Device Lab, Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
Two-dimensional van der Waals topological materials offer a unique platform for exploring exotic physics and developing novel electronic devices. Further research into their preparation, properties, and applications is crucial for realizing their full potential.
Area of Science:
- Condensed-matter physics
- Materials science
Background:
- Two-dimensional (2D) van der Waals (vdW) topological materials (TMs) combine atomically flat layers with non-trivial band structures.
- These materials are attracting significant attention for exploring 2D topological physics and nanoscale topological phases.
Purpose of the Study:
- This review focuses on the preparation, properties, and device applications of 2D vdW TMs.
- It aims to provide a comprehensive overview for advancing their practical applications.
Main Methods:
- Summarizes three common preparation strategies: single crystal exfoliation, chemical vapor deposition, and molecular beam epitaxy.
- Introduces the origin and regulation of various properties, including electronic, transport, optoelectronic, thermoelectric, ferroelectric, and magnetic properties.
Main Results:
- Presents device applications such as field-effect transistors, memories, spintronic devices, and photodetectors.
- Highlights the potential of 2D vdW TMs in nanoscale topological phases.
Conclusions:
- Significant challenges and opportunities exist for the practical application of 2D vdW TMs in 2D topological electronics.
- Multifaceted efforts are necessary to bridge the gap between fundamental research and technological implementation.
