• 文献标题:   Interaction between the localized states in graphene
  • 文献类型:   Article
  • 作  者:   GHOSH A, FROTA HO
  • 作者关键词:   graphene, adatom, phase transition
  • 出版物名称:   JOURNAL OF MAGNETISM MAGNETIC MATERIALS
  • ISSN:   0304-8853 EI 1873-4766
  • 通讯作者地址:   Univ Fed Amazonas
  • 被引频次:   2
  • DOI:   10.1016/j.jmmm.2018.01.033
  • 出版年:   2018

▎ 摘  要

The formation of the localized magnetic moments is studied due to the presence of two-impurities in the two sublattices of a single-layer graphene sheet. The interaction between two similar magnetic impurities and also the hybridizations are decisive in determining the boundary between the magnetic and the non-magnetic states. A strong chemical potential dependence of the above phase boundary is evident. An anomalous scaling of the boundary separating the above regions is more pronounced in the two-impurity case when compared to that of the single impurity. (C) 2018 Elsevier B.V. All rights reserved.