• 文献标题:   First-principles calculations study of the configurations, structural, electronic and magnetic properties of graphene and h-BN monolayers and bilayers adsorbed on Co(0001) surface
  • 文献类型:   Article
  • 作  者:   ABDALLAH FS, BOUAMAMA K, FARHAT S, CHERIF SM
  • 作者关键词:   graphene, hbn, cobalt, ab?initio calculation, stable configuration, magnetic moment
  • 出版物名称:   PHYSICA BCONDENSED MATTER
  • ISSN:   0921-4526 EI 1873-2135
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1016/j.physb.2020.412755 EA MAR 2021
  • 出版年:   2021

▎ 摘  要

We carried out first-principles calculations study of the configurations, structural, electronic and magnetic properties of a graphene (h-BN) monolayer and bilayer adsorbed on Co(0001) surface. Binding energies, distances of the carbon C, boron B, or nitrogen N atoms from the Co surface and optimized lattice parameter for all configurations are reported. Induced magnetic moments on C, B and N atoms are determined as well as the magnetic moments carried by the cobalt Co surface atoms in presence of graphene or h-BN. Our results are discussed by means of hybridization of graphene (h-BN) and cobalt orbitals and charge transfer at the graphene (h-BN)/Co interface based on band structure and density of states calculations. Comparison between monolayers and bilayers systems highlighted the preponderant role of the first layer in contact with cobalt for the bilayers cases.