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We study the electronic structure and magnetic properties of h-BN triangularclusters embedded in graphene supercells. We find that, depending on the sizesof the clusters and the graphene separation region between them, spinpolarization can be induced through charge doping or can be observed even inthe neutral state. For these cases, half-metallicity is observed for certaincharged states, which are otherwise metallic. In these half-metallic states,the spin density is concentrated near the edges of the clusters, in analogy tothe more common predictions for half-metals in zigzag graphene nanoribbons andh-BN/graphene intercalated nanoribbons. Since experimental realizations of h-BNdomains in graphene have already been reported, these heterostructures can besuitable candidates for nanoelectronics and spintronics applications.

Half-metallicity induced by charge injection in hexagonal boron nitride clusters embedded in graphene