Misfit layered compounds are natural van der Waals heterostructures in which electronically active transition-metal dichalcogenide layers are decoupled by incommensurate blocking layers, enabling bulk realization of quasi-two-dimensional quantum states. Here we investigate the superconducting, transport,and structural properties of the misfit compound (SnS)1.15(TaS2) under pressures up to 150 GPa. The low-pressure superconducting phase is gradually suppressed and disappears near 14.7 GPa,accompanied by increasing residual resistance. Remarkably, a distinct superconducting phase reemerges above 80 GPa and persists to the highest pressures achieved. This reentrant superconductivity follows a pressure-induced sign reversal of the Hall coefficient near 60 GPa and a nonmonotonic evolution of the normal-state resistance, indicating an electronic reconstruction. No structural phase transition is detected over the entire pressure range. Our results demonstrate a pressure-driven electronic reconstruction leading to reentrant superconductivity in a misfit layered compound, establishing pressure as an effective route to engineer superconductivity and electronic states in natural van der Waals heterostructures.
@article{arxiv.2602.22999,
title = {Pressure-induced reentrant superconductivity in a misfit layered compound $\mathrm{(SnS)_{1.15}(TaS_2)}$},
author = {Chutong Zhang and Jiajia Feng and Xiao Tang and Xiangzhuo Xing and Na Zuo and Xiaolei Yi and Yan Meng and Xiaoran Zhang and Rajesh Kumar Ulaganathan and Raman Sankar and Xiaofeng Xu and Xin Chen and Xiaobing Liu},
journal= {arXiv preprint arXiv:2602.22999},
year = {2026}
}