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Phase diagram and exotic spin-spin correlations of anisotropic Ising model on the Sierpiński gasket

Author

Listed:
  • Meng Wang

    (Theoretical Condensed Matter Physics and Computational Materials Physics Laboratory, School of Physics, University of Chinese Academy of Sciences)

  • Shi-Ju Ran

    (Theoretical Condensed Matter Physics and Computational Materials Physics Laboratory, School of Physics, University of Chinese Academy of Sciences)

  • Tao Liu

    (Theoretical Condensed Matter Physics and Computational Materials Physics Laboratory, School of Physics, University of Chinese Academy of Sciences)

  • Yang Zhao

    (University of Manitoba)

  • Qing-Rong Zheng

    (Theoretical Condensed Matter Physics and Computational Materials Physics Laboratory, School of Physics, University of Chinese Academy of Sciences)

  • Gang Su

    (Theoretical Condensed Matter Physics and Computational Materials Physics Laboratory, School of Physics, University of Chinese Academy of Sciences)

Abstract

The anisotropic antiferromagnetic Ising model on the fractal Sierpiński gasket is intensively studied, and a number of exotic properties are disclosed. The ground state phase diagram in the plane of magnetic field-interaction of the system is obtained. The thermodynamic properties of the three plateau phases are probed by exploring the temperature-dependence of magnetization, specific heat, susceptibility and spin-spin correlations. No phase transitions are observed in this model. In the absence of a magnetic field, the unusual temperature dependence of the spin correlation length is obtained with 0 ≤ J b /J a

Suggested Citation

  • Meng Wang & Shi-Ju Ran & Tao Liu & Yang Zhao & Qing-Rong Zheng & Gang Su, 2016. "Phase diagram and exotic spin-spin correlations of anisotropic Ising model on the Sierpiński gasket," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 89(2), pages 1-10, February.
    • Handle: RePEc:spr:eurphb:v:89:y:2016:i:2:d:10.1140_epjb_e2015-60745-5
    DOI: 10.1140/epjb/e2015-60745-5
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