Li Zhuojun, Song Yekai, Tang Shujie
State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China.
CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai 200050, People's Republic of China.
J Phys Condens Matter. 2020 May 15;32(33). doi: 10.1088/1361-648X/ab8660.
Although the 1Tphase is rare in the transition metal dichalcogenides (TMDCs) family, it has attracted rapid growing research interest due to the coexistence of superconductivity, unsaturated magneto-resistance, topological phases etc. Among them, the quantum spin Hall (QSH) state in monolayer 1T-TMDCs is especially interesting because of its unique van der Waals crystal structure, bringing advantages in the fundamental research and application. For example, the van der Waals two-dimensional (2D) layer is vital in building novel functional vertical heterostructure. The monolayer 1T-TMDCs has become one of the widely studied QSH insulator. In this review, we review the recent progress in fabrications of monolayer 1T-TMDCs and evidence that establishes it as QSH insulator.
尽管1T相在过渡金属二硫族化合物（TMDCs）家族中很罕见，但由于其超导性、不饱和磁阻、拓扑相共存等特性，它已引起了迅速增长的研究兴趣。其中，单层1T-TMDCs中的量子自旋霍尔（QSH）态因其独特的范德华晶体结构而特别有趣，这为基础研究和应用带来了优势。例如，范德华二维（2D）层对于构建新型功能性垂直异质结构至关重要。单层1T-TMDCs已成为研究广泛的QSH绝缘体之一。在这篇综述中，我们回顾了单层1T-TMDCs制备方面的最新进展以及将其确立为QSH绝缘体的证据。
