Zejun Li, Pin Lyu, Zhaolong Chen, Dandan Guan, Shuang Yu, Jinpei Zhao, Pengru Huang, Xin Zhou, Zhizhan Qiu, Hanyan Fang, Makoto Hashimoto, Donghui Lu, Fei Song, Kian Ping Loh, Yi Zheng, Zhi-Xun Shen, Kostya S Novoselov, Jiong Lu
Noncentrosymmetric transition metal dichalcogenide (TMD) monolayers offer a fertile platform for exploring unconventional Ising superconductivity (SC) and charge density waves (CDWs). However, the vulnerability of isolated monolayers to structural disorder and environmental oxidation often degrade their electronic coherence. Herein, we report an alternative approach for fabricating stable and intrinsic monolayers of 1H-TaS2 sandwiched between SnS blocks in a (SnS)1.15 TaS2 van der Waals (vdW) superlattice. The SnS block layers not only decouple individual 1H-TaS2 sublayers to endow them with monolayer-like electronic characteristics, but also protect the 1H-TaS2 layers from electronic degradation...
April 3, 2024: Advanced Materials