Vanadium sulfide nanoribbons: Electronic and magnetic properties

We report the structural, electronic and magnetic properties of zigzag-type 2H-VS2 nanoribbons based on the first-principles calculations. Our results suggest that the zigzag-type 2H-VS2 nanoribbons are intrinsic ferromagnetic or ferrimagnetic materials dependent on their edge structures. The S-terminated VS2 nanoribbons with or without hydrogen saturation at the edges are ferromagnetic, whereas V-terminated VS2 nanoribbons are ferrimagnetic at their ground states. The average magnetic moment per V atom of VS2 nanoribbons increases monotonously with their width, but still smaller than that of perfect VS2 monolayer. These results imply the great potential of VS2 nanoribbons in spintronics application. (C) 2013 Elsevier B.V. All rights reserved.