Abstract
In the search for semiconducting materials at the nanoscale, theoretical methods have been used to propose a series of nanocarbon sheets featuring a mixture of sp2 and sp3 hybridized carbon atoms, with Me-Graphene as one example. In addition to interesting physical properties shown by these 2D forms, nanoribbon variations of these structures can feature new properties. In this work, we show that the electronic properties of Me-Graphene nanoribbons can be modulated through structural details such as chirality, width, and edge details. Not only the metallic or semiconducting behavior can be switched by choosing selected geometries, but the direct or indirect character of the gap of the semiconducting cases can be triggered by selecting specific chiralities. In particular combinations of chirality and edge structure, we further point out that multiple spin-polarized states emerge, turning these systems into potential materials for spintronics.
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