• 文献标题:   Unique magnetic and thermodynamic properties of a zigzag graphene nanoribbon
  • 文献类型:   Article
  • 作  者:   WANG XS, ZHANG F, SI N, MENG J, ZHANG YL, JIANG W
  • 作者关键词:   zigzag graphene nanoribbon, monte carlo simulation, magnetization, specific heat, blocking temperature
  • 出版物名称:   PHYSICA ASTATISTICAL MECHANICS ITS APPLICATIONS
  • ISSN:   0378-4371 EI 1873-2119
  • 通讯作者地址:   Shenyang Univ Technol
  • 被引频次:   16
  • DOI:   10.1016/j.physa.2019.121356
  • 出版年:   2019

▎ 摘  要

Magnetic and thermodynamic properties of the zigzag graphene nanoribbon described by Ising model have been studied within Monte Carlo simulation. The system exhibited interesting and rich magnetization plateaus behaviors at low temperature, which is sensitive to the exchange coupling and the anisotropy. In certain parameters, the depressed saturation magnetization, spin-flip or spin-flop has been found on the magnetization curves. The peaks on the susceptibility and specific heat curves originate from competition among the magnetic field, the exchange couplings and anisotropies. The spin configurations of the zigzag graphene nanoribbon can be modulated by the anisotropies. Our results can provide an opportunity for the design of a new type random access memory by using zigzag graphene nanoribbon. (C) 2019 Elsevier B.V. All rights reserved.