• 文献标题:   Effects of electron-electron interaction on the collinear indirect exchange coupling in graphene nanoflakes
  • 文献类型:   Article
  • 作  者:   MIREHI A, HEIDARISEMIROMI E
  • 作者关键词:   graphene nanoflake, rkky interaction, magnetic impuritie, electronelectron interaction, rashba spinorbit interaction
  • 出版物名称:   PHYSICS LETTERS A
  • ISSN:   0375-9601 EI 1873-2429
  • 通讯作者地址:   Univ Kashan
  • 被引频次:   2
  • DOI:   10.1016/j.physleta.2018.07.050
  • 出版年:   2018

▎ 摘  要

Using the Hubbard model in the framework of the tight-binding formulation, we studied the effects of the electron-electron (e-e) interaction on the indirect magnetic exchange coupling between the magnetic impurities embedded in triangular graphene nanoflakes. The results show that the magnitude of the coupling enhances in the presence of the e-e interaction and Rashba spin-orbit interaction (RSOI). The RKKY coupling magnitude depends on the impurity positions in nanoflake and the size of the system, as well. (C) 2018 Elsevier B.V. All rights reserved.