2012/05/15 by Hem C. Kandpal, H.C. Kandpal, Klaus Koepernik +4
Materials Science · Physics and Astronomy · #Atomic and Molecular Physics #FOS: Physical sciences #Graphene research and applications #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1205.3469
10 pages, 4 figures
arxiv created 2012/05/15 · openalex publication_date 2012/05/15 · arxiv updated 2012/05/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The adsorption behavior and the magnetic states of cobalt atoms and dimers on single vacancies in a graphene sheet are investigated by means of relativistic density functional calculations. It is found that local magnetic moments are formed in both cases, despite strong chemical binding. Of particular interest are kinetically stable isomers with two cobalt atoms attached to the same side of the graphene sheet. Magnetic bi-stability with an anisotropy barrier of about 50 meV is possible in this geometry. The feasibility of its preparation is discussed.