Edge effect on magnetic phases of doped zigzag graphone nanoribbons

Curie temperature TC has important implications for the experimental realization of magnetic graphone nanostructures relevant for future spintronic applications. Using both Monte Carlo method and mean field theory, we study magnetic properties of zigzag graphone nanoribons (ZGONR) doped with magnetic impurities M. We show that TC increases with the number of dopants but for configurations with fixed number M, TC is not very sensitive to impurities distances d(M−M). In particular, in bidoped ZGONR configurations, TC has different values for the same d(M−M). This surprising behavior stems from edge effect. The result as derived in this report is easily adapted to predict how the magnetism is influenced in all half hydrogenated four-electrons hexagonal nanoribbon devices.