• 文献标题:   Electronic and magnetic properties of MnF3(4) superhalogen cluster-sandwiched bilayer graphene: First-principles calculations
  • 文献类型:   Article
  • 作  者:   ZHANG X, LI D, MENG JJ, YAN R, NIU Y, ZHAO HM, LIANG CJ, HE ZQ
  • 作者关键词:   bilayer graphene, first principle, mnf3 4 superhalogen cluster, gr/mnf3 4 /gr
  • 出版物名称:   COMPUTATIONAL MATERIALS SCIENCE
  • ISSN:   0927-0256 EI 1879-0801
  • 通讯作者地址:   Beijing Jiaotong Univ
  • 被引频次:   3
  • DOI:   10.1016/j.commatsci.2016.08.006
  • 出版年:   2016

▎ 摘  要

By conducting first-principles calculations with van der Waals correction, we investigate the structural, electronic, and magnetic properties of GriNInF(3(4))/Gr sandwiched structures. The calculated binding energies were within 54-79 meV per carbon atom for the four GriMnF(3(4))/Gr sandwiched structures tested in our study. This result implies that the MnF3(4) clusters stabilize the AA and AB stacking in the Gr/MnF3(4)/Gr sandwich structures because of the high electronegativity of the clusters. Charge transfer from bilayer graphene to the MnF3(4) clusters is noted to induce effective hole doping in graphene. Spin polarization in the graphene layer is approximately 100% along the majority direction on the position of the Fermi level in the MnF3-doped structures. The band gaps of the spin-up and spin-down branches and the magnetic moments of the C atoms are increased by compression interlayer spacing. The MnF3 clusters affect the electronic and magnetic properties of graphene in the vicinity of the Fermi level; thus, the clusters are highly suitable for use as a dopant in spintronic applications. (C) 2016 Elsevier B.V. All rights reserved.