Two-Dimensional MoSi<sub>2</sub>N<sub>4</sub> Family: Progress and Perspectives Form Theory
Wenyuan Jin, Jingning Zuo, Jiafei Pang, Jinni Yang, Xin Yu, Hongxia Zhong, Xiao‐Yu Kuang, Cheng Lü
Abstract
Recently, a new two-dimensional (2D) layered MoSi 2 N 4 has been successfully synthesized by chemical vapor deposition without knowing the 3D counterparts [ Science 2020, 369, 670−674]. The unique septuple-atomic-layer structure and diverse composition of MoSi 2 N 4 have drawn tremendous interest in studying 2D MA 2 Z 4 systems based on the MoSi 2 N 4 structure. As an emerging family of 2D materials, MA 2 Z 4 materials exhibit a wide range of properties and excellent tunability, making them highly promising for various applications. Herein, we summarize recent significant progress in property characterization of the MA 2 Z 4 family. The electronic, magnetic, thermal transport, and superconducting properties, including their tunability through strain engineering and elemental substitution, are presented and elaborated in detail. Further perspectives and new opportunities of the emerging MA 2 Z 4 family are presented at the end of this Perspective.