• 文献标题:   Quantum fluctuation effects on graphene-like material with six-sublattice structure
  • 文献类型:   Article
  • 作  者:   HU JQ, ZHU Y, SI N, ZHANG N, JIANG W, GUO AB
  • 作者关键词:   graphenelike, quantum fluctuation, spinwave spectra, magnetization
  • 出版物名称:   PHYSICA ELOWDIMENSIONAL SYSTEMS NANOSTRUCTURES
  • ISSN:   1386-9477 EI 1873-1759
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1016/j.physe.2021.114673 EA FEB 2021
  • 出版年:   2021

▎ 摘  要

Adsorption and doping affect the magnetic properties of bilayer graphene. The triangular structure six-sublattice system is investigated in this study. The Hamiltonian of the system is given under the framework of the Heisenberg model, and the spin spectrum and magnetization in the ground state of the system are solved using linear spin-wave theory and the delayed Green?s function. On this basis, the quantum fluctuations are defined, and the effects of the exchange coupling, magnetocrystalline anisotropy, and spin quantum number on the quantum fluctuations are discussed. The results indicate that the antiferromagnetic exchange coupling of the system significantly affects the quantum fluctuations.