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Start Over Author "Shamsu Abubakar" Journal aip conference proceedings
2 results on '"Shamsu Abubakar"'

1. First-principle study of geometric stabilities, electronic and magnetic properties of low coverage vanadium adsorption on graphene

Author

Md. Mahmudur Rahman, Hishamuddin Zainuddin, Yusuf Zuntu Abdullahi, and Shamsu Abubakar

Subjects
Materials science, Condensed matter physics, Graphene, Relaxation (NMR), Vanadium, chemistry.chemical_element, Ring (chemistry), law.invention, Metal, Adsorption, chemistry, law, visual_art, Atom, Physics::Atomic and Molecular Clusters, visual_art.visual_art_medium, Perpendicular
Abstract

Stable geometries, electronic and magnetic properties of low coverage vanadium (V) atoms adsorption on graphene sheet have been investigated by first principles calculations, using generalized gradient approximation. Calculation shows that center of the ring is energetically favorable for both V adatom and perpendicular dimer after relaxation. Moreover, the proportion of orbital contribution of C-V bonding are mainly dominated by 2pz orbital of C and partially occupied by the 3d like states of V. It is also found that the low coverage V atom adsorbed graphene system is metallic and magnetic, and has demonstrated additional hint on its usefulness in magnetic devices.

Published
2014

2. First-Principle Study of Geometric Stabilities, Electronic and Magnetic Properties of Low Coverage Vanadium Adsorption on Graphene.

Author

Yusuf Zuntu Abdullahi, Md. Mahmudur Rahman, Zainuddin, H., and Shamsu Abubakar

Subjects
ELECTROMETALLURGY of vanadium, GEOMETRIC analysis, GRAPHENE, ADATOMS, DIMERS, APPROXIMATION theory
Abstract

Stable geometries, electronic and magnetic properties of low coverage vanadium (V) atoms adsorption on graphene sheet have been investigated by first principles calculations, using generalized gradient approximation. Calculation shows that center of the ring is energetically favorable for both V adatom and perpendicular dimer after relaxation. Moreover, the proportion of orbital contribution of C-V bonding are mainly dominated by 2pz orbital of C and partially occupied by the 3d like states of V. It is also found that the low coverage V atom adsorbed graphene system is metallic and magnetic, and has demonstrated additional hint on its usefulness in magnetic devices. [ABSTRACT FROM AUTHOR]

Published
2014
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