Spintronic Transport Performances of VSe2 Nanoribbons

The spin-resolved electronic transport behaviors of VSe 2 nanoribbons are theoretically investigated to explore their applications in spintronic devices, employing by the first-principles calculations combined with nonequilibrium Green's function scheme. The band structure, current varying curves with bias voltage between nanoribbon terminal electrodes and electronic transmission spectra of two representative VSe 2 nanoribbons along zigzag and armchair crystallographic orientations are calculated respectively. The evident negative differential resistance under the bias voltage of ∼0.6 V for the armchair orientation has been found, implying the significant crystal anisotropy of VSe 2 monolayer. Meanwhile, both the VSe 2 nanoribbon devices along zigzag and armchair directions represent favorable spin filtering effect, suggesting they are prospective candidates as a multifunction material in spintronic and digital applications.