• 文献标题:   Impurity-Induced Magnetization of Graphene
  • 文献类型:   Article
  • 作  者:   INGLOT M, SZCZEPANSKI T
  • 作者关键词:   graphene, magnetism, impurity, localized state, resonant state, spintronic
  • 出版物名称:   MATERIALS
  • ISSN:  
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.3390/ma15020526
  • 出版年:   2022

▎ 摘  要

We present a model of impurity-induced magnetization of graphene assuming that the main source of graphene magnetization is related to impurity states with a localized spin. The analysis of solutions of the Schrodinger equation for electrons near the Dirac point has been performed using the model of massless fermions. For a single impurity, the solution of Schrodinger's equation is a linear combination of Bessel functions. We found resonance energy levels of the non-magnetic impurity. The magnetic moment of impurity with a localized spin was accounted for the calculation of graphene magnetization using the Green's function formalism. The spatial distribution of induced magnetization for a single impurity is obtained. The energy of resonance states was also calculated as a function of interaction. This energy is depending on the impurity potential and the coupling constant of interaction.