The van der Waals (vdW) heterostructures are a wonderful playground for condensed matter physics, and the recently discovered two-dimensional magnetism renovates this field. In this work, we construct vdW heterostructures composed of p - and d -magnetic layers, namely carbon-terminated SiC(111)/CrBr3 and hydrogenated graphene (HG)/ CrBr3 . By first-principles calculations, strong interlayer magnetic interaction is predicted, as the interlayer exchange energy is up to hundreds of meV, which may originate from the delocalization of magnetic p orb...