• 文献标题:   Phase transitions and compensation behavior of graphene-based Janus materials
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   ZRIOUEL S
  • 作者关键词:   graphone, graphyne, coreshell nanostructure, monte carlo simulation, mean field theory, ferrimagnetism, critical blocking temperature, compensation behavior, hysteresis loop
  • 出版物名称:   JOURNAL OF MAGNETISM MAGNETIC MATERIALS
  • ISSN:   0304-8853 EI 1873-4766
  • 通讯作者地址:   Sultan Moulay Slimane Univ Beni Melia
  • 被引频次:   3
  • DOI:   10.1016/j.jmmm.2019.165711
  • 出版年:   2020

▎ 摘  要

Based on our works [1-4], we report the magnetic and hysteretic properties of graphene-based Janus materials namely, pure and doped zigzag graphone nanoribbons, hexagonal core/shell graphene-like nanoribbon, and graphyne core/shell nanoparticle, within the framework of both Monte Carlo calculations and mean field theory. We have reported the effects of the Hamiltonian parameters on the magnetic and the thermodynamic quantities of the systems. The total magnetization, the susceptibility, the specific heat, and the hysteresis curves, as well as the critical temperature and the compensation behavior, that is of crucial importance for technological applications such as thermo-optical recording, are studied. A number of characteristic behaviors are found, such as the existence of two new and non-classified magnetization profiles in addition to the Q-, P-, and N-types of compensation behavior and the occurrence of square, single, and triple hysteresis loops which exhibit different step effects and various shapes.