It is generally assumed that the application of a charge-current in ferromagnetic metals suppresses their ferromagnetic order through trivial Joule heating. Here, we demonstrate that a charge current can instead enhance magnetic ordering. Using a WTe2/Fe3Ge2Te (FGT) stack as a model system, we show that a charge current flowing in WTe2 controls the ferromagnetic properties and magnetic phase transition of the adjacent FGT via a current-induced effective magnetic-field arising from orbital magnetization. Remarkably, the charge current drives a substantial enhancement of the Curie temperature, boosting it well above room temperature. Furthermore, we show that the charge-current enables controlled tuning of the phase transitions in FGT, which confirms the scaling behaviour of a ferromagnet-paramagnet phase transition. This work provides a pathway for integrating two-dimensional ferromagnets into spintronic functionalities at technologically relevant temperatures and for exploring novel current-driven phenomena in ferromagnetic systems.
@article{arxiv.2603.27298,
title = {Current-tunable room temperature ferromagnetism and current-driven phase transitions},
author = {Jianping Guo and Peng Rao and Xinhao Huang and Tailai Xu and Yuxuan Guo and Jian Shao and Cheng Sun and Anton Orekhov and Thomas N. G. Meier and Johannes Knolle and Christian H. Back and Lin Chen},
journal= {arXiv preprint arXiv:2603.27298},
year = {2026}
}