论文标题
单层2D材料的各向异性特性：C2DB数据库的概述
Anisotropic properties of monolayer 2D materials: an overview from the C2DB database
论文作者
论文摘要
我们分析了从C2DB数据库中超过一千2D材料的电子，磁性，弹性和传输性能中平面内各向异性的发生。我们确定数百种各向异性材料，并根据其点组对称性和各向异性程度对其进行分类。统计分析表明，下点组对称性和结构中的大量不同元素有利于所有类型的各向异性，这可能与未来的材料设计方法有关。此外，我们确定了新型化合物，预计可以从父散装化合物中易于剥落，其各向异性在很大程度上远远超过了已知的2D材料。我们的发现为未来的原子晶体中各向异性反应的研究提供了全面的参考，并指出了下一代各向异性2D设备的新的未开发材料。
We analyze the occurrence of in-plane anisotropy in the electronic, magnetic, elastic and transport properties of more than one thousand 2D materials from the C2DB database. We identify hundreds of anisotropic materials and classify them according to their point group symmetry and degree of anisotropy. A statistical analysis reveals that a lower point group symmetry and a larger amount of different elements in the structure favour all types of anisotropies, which could be relevant for future materials design approaches. Besides, we identify novel compounds, predicted to be easily exfoliable from a parent bulk compound, with anisotropies that largely outscore those of already known 2D materials. Our findings provide a comprehensive reference for future studies of anisotropic response in atomically-thin crystals and point to new previously unexplored materials for the next generation of anisotropic 2D devices.
