Fig. 1.

Schematic diagram of magnetic engineering strategy. a Hydrogenated graphene. b Vacancy graphene. c Graphene nanoribbon. Different colors represent magnetic moments in different directions [15]. d Calculated Mexican hat band dispersion in electrically biased Bernal stacked bilayer graphene. The diverging electronic DOS at the edge of the Mexican hat potentially results in ferromagnetic Stoner instability [38]. e Schematic drawing (with top gate) of the devices, which can prove the proximity-induced ferromagnetism in graphene transferred to a YIG/GGG substrate [41].

Figures reproduced with permission from Refs. [15, 38, 41]. (Color figure online)