Six-membered-ring inorganic materials:definition and prospects

• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: REVIEWS
• 页码范围: 170-192
• 页数: 23页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa248

摘要

The six-membered ring(SMR)is a common structure unit for numerous material systems.These materials include,but are not limited to,the typical two-dimensional materials such as graphene,h-BN,and transition metal dichalcogenides,as well as three-dimensional materials such as beryllium,magnesium,MgB2 and Bi2Se3.Although many of these materials have already become'stars'in materials science and condensed-matter physics,little attention has been paid to the roles of the SMR unit across a wide range of compositions and structures.In this article,we systematically analyze these materials with respect to their very basic SMR structural unit,which has been found to play a deterministic role in the occurrence of many intriguing properties and phenomena,such as Dirac electronic and phononic spectra,superconductivity and topology.As a result,we have defined this group of materials as SMR inorganic materials,opening up a new perspective on materials research and development.With their unique properties,SMR materials deserve wide attention and in-depth investigation from materials design,new physical discoveries to target-wizard applications.It is expected that SMR materials will find niche applications in next-generation information technology,renewable energy,space,etc.