Tuning 2D magnetism in Fe_3+XGeTe₂ films by element doping.

ABSTRACT: Two-dimensional (2D) ferromagnetic materials have been discovered with tunable magnetism and orbital-driven nodal-line features. Controlling the 2D magnetism in exfoliated nanoflakes via electric/magnetic fields enables a boosted Curie temperature (T _C) or phase transitions. One of the challenges, however, is the realization of high T _C 2D magnets that are tunable, robust and suitable for large scale fabrication. Here, we report molecular-beam epitaxy growth of wafer-scale Fe_3+XGeTe₂ films with T _C above room temperature. By controlling the Fe composition in Fe_3+XGeTe₂, a continuously modulated T _C in a broad range of 185-320 K has been achieved. This widely tunable T

SUBMITTER: Liu S 

PROVIDER: S-EPMC9270067 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature