We show that graphene can be magnetized by coupling to a ferromagnetic Co film through a Au monolayer. The presence of dislocation loops under graphene leads to a ferrimagnetic ordering of moments in the two C sublattices. It is shown that the band gap of $\sim 80\mathrm{meV}$ in the $\overline{K}$ point has a magnetic nature and exists for ferrimagnetic ordering. Interplay between Rashba and exchange couplings is evidenced by spin splitting asymmetry in spin-ARPES measurements and fully supported by DFT calculation of a ($9\times 9$) unit cell. Owing to sign-opposite Berry curvatures for $\overline{K}$ and ${\overline{K}}^{\prime }$ valleys, the synthesized system is promising for the realization of a circular dichroism Hall effect.

Using photoelectron diffraction and spectroscopy, we explore the structural and electronic properties of the hexagonal boron nitride $(h$-BN) monolayer epitaxially grown on the Co(0001) surface. Perfect matching of the lattice parameters allows formation of a well-defined interface where the B atoms occupy the hollow sites while the N atoms are located above the Co atoms. The corrugation of the $h$-BN monolayer and its distance from the substrate were determined by means of R-factor analysis. The obtained results are in perfect agreement with the density functional theory (DFT) predictions. The electronic structure of the interface is characterized by a significant mixing of the $h$-BN and Co states. Such hybridized states appear in the $h$-BN band gap. This allows to obtain atomically resolved scanning tunneling microscopy (STM) images from the formally insulating 2D material being in contact with ferromagnetic metal. The STM images reveal mainly the nitrogen sublattice due to a dominating contribution of nitrogen orbitals to the electronic states at the Fermi level. We believe that the high quality, well-defined structure and interesting electronic properties make the $h$-BN/Co(0001) interface suitable for spintronic applications.