2006/03/31 by David Jacob, J. Fernández-Rossier, J. Fernández‐Rossier +1 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Electronic and Structural Properties of Oxides #Semiconductor materials and devices #ZnO doping and properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.74.081402
published as Phys. Rev. B 74, 081402(R) (2006) · 5 pages, 4 figures; accepted version; minor changes in introduction and references
openalex publication_date 2006/08/09 · arxiv created 2006/09/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
Contrary to the antiferromagnetic and insulating character of bulk NiO, one-dimensional chains of this material can become half metallic due to the lower coordination of their atoms. Here we present ab initio electronic structure and quantum transport calculations of ideal infinitely long NiO chains and of more realistic short ones suspended between Ni electrodes. While infinite chains are insulating, short suspended chains are half-metallic minority-spin conductors that displays very large magnetoresistance and a spin-valve behavior controlled by a single atom.