Magnetic Excitations in Above-room-temperature Ferromagnetic van der Waals Material Fe3GaTe2

With weak interlayer coupling, van der Waals materials offer unique opportunities to utilize magnetism at the 2-D limit. Fe3GaTe2 has emerged as an attractive candidate for intrinsic ferromagnetic van der Waals (vdW) materials, exhibiting robust magnetism exceeding room temperature and showcasing high potential for applications in spintronics. The discovery of a significant two-dimensional (2-D) skyrmion topological Hall effect (THE), boasting an exceptionally wide temperature range encompassing room temperature, underscores the remarkable potential inherent in this material. We propose employing magnetic circular dichroic Resonant Inelastic X-ray Scattering (RIXS-MCD) at the Fe L3 edge on the ID-32 beamline to probe the ferromagnetic low-energy excitations in Fe3GaTe2. This approach holds the potential to provide invaluable insights into the contributions of spin and orbital degrees of freedom to 2-D magnetism and the magnetic Hamiltonian.