Non-volatile electric-field control of room-temperature ferromagnetism in Fe₃GaTe₂ heterostructures.

ABSTRACT: Van der Waals multiferroic structures hold promises for advancing the development of low-power multifunctional nanoelectronics devices, but single-phase two-dimensional multiferroic materials are limited. In this study, we constructed a room-temperature P(VDF-TrFE)/Fe₃GaTe₂ heterostructure (ferromagnetic layer thickness of 4.8 nm). and demonstrate significant bidirectional modulation of the Curie temperature upon application of ±90 V. Specifically, the Curie temperature decreased from 326 K to 247 K under +90 V and increased to 366 K under -90 V. Notably, we observed layer-dependent magnetic modulation, In 3-layer Fe₃GaTe₂, transitioning from negative to positive polarization increases Curie temperature, while thicker configurations show a decrea

SUBMITTER: Cai C 

PROVIDER: S-EPMC12287275 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature