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Phase diagram and magnetization of a graphene nanoisland structure

Author

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  • Wang, Kai
  • Yin, Peng
  • Zhang, Yanli
  • Jiang, Wei

Abstract

Magnetic properties of a graphene nanoisland structure have been studied by the effective-field theory with correlations. It consists of two triangular interpenetrating sublattices described by Ising model with mixed spin. The results show the exchange coupling and the anisotropy have important influence on the magnetization. The reentrant and staircase effect have been found within a certain parameter range.

Suggested Citation

  • Wang, Kai & Yin, Peng & Zhang, Yanli & Jiang, Wei, 2018. "Phase diagram and magnetization of a graphene nanoisland structure," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 505(C), pages 268-279.
    • Handle: RePEc:eee:phsmap:v:505:y:2018:i:c:p:268-279
    DOI: 10.1016/j.physa.2018.03.073
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    References listed on IDEAS

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    1. SáBarreto, F.C. & Fittipaldi, I.P., 1985. "Thermodynamical properties of the transverse Ising model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 129(2), pages 360-373.
    2. Kaneyoshi, T. & Tucker, J.W. & Jaščur, M., 1992. "Differential operator technique for higher spin problems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 186(3), pages 495-512.
    3. Sá Barreto, F.C. & Mota, A.L., 2012. "Correlations equalities and some upper bounds for the critical temperature for spin one systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 391(23), pages 5908-5917.
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    Cited by:

    1. Shi, Xiaoling & Liu, Peisheng, 2019. "Metamagnetic anomalies in the kinetic Ising model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 536(C).

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