Ti-based two-dimensional transition-metal carbides (MXenes) have attracted attention due to their superior properties and are being explored across various applications1,2. Despite their versatile properties, superconductivity has never been demonstrated, not even predicted, for this important group of 2D materials. In this work, we have introduced an electrochemical intercalation protocol to construct versatile organometallic-inorganic hybrid MXenes and achieved tunable superconductivity in the metallocene-modified layered crystals. Through structural editing of MXene matrix at atomic scale and meticulously modulated intercalation route, Ti3C2Tx intercalated with metallocene species exhibits a superconductive transition temperature (Tc) of 10.2 K. Guest intercalation induced electron filling and strain engineering are responsible for the emerging superconductivity in this intrinsically non-superconducting material. Theoretically, simulated electron-phonon interaction effects further elucidate the nature of the changes in Tc. Furthermore, the Tc of crafted artificial superlattices beyond Ti-based MXenes have been predicted, offering a general strategy for engineering superconductivity and magnetism in layered hybrid materials.
@article{arxiv.2502.11035,
title = {Organometallic-Inorganic Hybrid MXenes with Tunable Superconductivity},
author = {Qi Fan and Tao Bo and Wei Guo and Minghua Chen and Qing Tang and Yicong Yang and Mian Li and Ke Chen and Fangfang Ge and Jialu Li and Sicong Qiao and Changda Wang and Li Song and Lijing Yu and Jinghua Guo and Michael Naguib and Zhifang Chai and Qing Huang and Chaochao Dun and Ning Kang and Yury Gogotsi and Kun Liang},
journal= {arXiv preprint arXiv:2502.11035},
year = {2025}
}