Wafer scale sputtered Van der Waals ferromagnet

Two-dimensional (2D) van der Waals (vdW) magnets have emerged as a transformative class of materials for spintronic and quantum technologies. Among them, 2D magnets stands out for its metallic conductivity, tunable Curie temperature (T_c) and interesting topological textures at room temperature. However, scalable growth of high-quality 2D magnet thin films remains challenging, with most studies relying on exfoliated flakes. Here, we report the first successful deposition of Co-Fe-Te based 2D magnet thin films via sputtering, demonstrating high structural quality and T_c at above room temperature. Careful optimization of growth and annealing conditions yielded Curie temperatures exceeding room temperature, along with robust ferromagnetism and strong anomalous Hall effect which is switchable with an electrical current. This work establishes sputtering as a scalable route for 2D vdW magnet synthesis, paving the way for large-area, room-temperature magnetic devices and offering new opportunities for spintronic integration and practical applications.