• DocumentCode
    906739
  • Title

    Dependency of Critical Behaviors on Different Order Parameters for Antiferromagnetic Heisenberg Model on Three-Dimensional Regular Lattice

  • Author

    Yang, Jae-Suk ; Yeon, Kyu-Hwang ; Yu, Seong Cho ; Kwak, Wooseop

  • Author_Institution
    Phys. Dept., Korea Univ., Seoul
  • Volume
    45
  • Issue
    6
  • fYear
    2009
  • fDate
    6/1/2009 12:00:00 AM
  • Firstpage
    2651
  • Lastpage
    2654
  • Abstract
    Magnetization is measured in experiments for both ferromagnetic and antiferromagnetic materials to investigate the magnetic properties of materials, and the susceptibility of total magnetization as a function of external field is used to determine Neel or Curie temperatures. In the Monte Carlo simulation, it is important to define the proper order parameters to describe the spin model, where the magnetization is used as an order parameter for ferromagnetic spin model and the staggered magnetization is used as an order parameter for the antiferromagnetic spin model without geometrical frustration. However, it is difficult to define an order parameter for frustrated spin models. We perform the Monte Carlo simulation for the antiferromagnetic Heisenberg spin model using the damage spreading as an order parameter, and also perform simulation using both the magnetization and the staggered magnetization as order parameters. Then, we measure the critical temperatures and the critical exponents on three-dimensional regular lattice estimated by different order parameters, and then study the dependency of critical behaviors on different order parameters for the antiferromagnetic Heisenberg spin models.
  • Keywords
    Curie temperature; Heisenberg model; Monte Carlo methods; Neel temperature; antiferromagnetic materials; critical exponents; ferromagnetic materials; frustration; lattice theory; magnetic susceptibility; magnetisation; 3D regular lattice; Curie temperature; Monte Carlo simulation; Neel temperature; antiferromagnetic Heisenberg model; antiferromagnetic materials; critical exponents; critical temperatures; ferromagnetic materials; ferromagnetic spin model; geometrical frustration; magnetic susceptibility; magnetization; Antiferromagnetization; Heisenberg model; Monte Carlo simulation; order parameter;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2009.2018947
  • Filename
    4957794