Magnetic and thermodynamics properties graphene monolayer with defects

Magnetic and thermodynamics properties of a graphene monolayer with defects are studied within the effective-field theory with correlations. The magnetization, the internal energy, and the specific heat as functions of temperature for different anisotropy and the defect concentration are calculated. Plateaus behaviors of the magnetization have been found. The reason that a broad maximum presents on the magnetization curve in some parameter range have been explained. Similar result has been also found experimentally in graphene. The results show the magnetic properties can be adjusted by controlling the defect concentration.