Fig. 9
From: Proximity coupling induced two dimensional magnetic order in EuO-based synthetic ferrimagnets
Sketch of the key findings: (i) We confirmed an AFM coupling between a 3d FM overlayer and EuO film. (ii) Above the bulk Curie temperature of EuO, magnetic order persists due to a proximity effect. (iii) The spatial range of this proximity effect is finite and drops above \(T_C\) with increasing temperature. (iv) The proximity effect is independent of the film thickness. (v) Due to the finite range of the proximity effect, approaching the 2D limit leads to a higher total magnetization of EuO. Overall, these facts turn the EuO/Fe bilayer into a 2D ferrimagnet.
