Suppression of local magnetic moment formation and paramagnetic exchange interactions in monolayer Fe 3 GeTe 2
The study used DFT+DMFT to investigate monolayer Fe3GeTe2's magnetic properties in its paramagnetic state. It found that electron correlations suppress local magnetic moments at iron atoms above germanium, while enhancing them at those within the Ge plane. This site-differentiated behavior explains non-linear magnetic responses and helps explain the observed Curie temperature.