• DocumentCode
    906364
  • Title

    Dynamic Compensation Temperature in the Mixed Spin-1/2 and Spin-3/2 Ising Model in an Oscillating Field on Alternate Layers of Hexagonal Lattice

  • Author

    Keskin, M. ; Deviren, B. ; Canko, O.

  • Author_Institution
    Dept. of Phys., Erciyes Univ., Kayseri
  • Volume
    45
  • Issue
    6
  • fYear
    2009
  • fDate
    6/1/2009 12:00:00 AM
  • Firstpage
    2640
  • Lastpage
    2643
  • Abstract
    The dynamic behavior of a mixed spin-1/2 and spin-3/2 Ising model with a crystal-field interaction in the presence of a time-varying magnetic field on alternate layers of hexagonal lattice is studied by using the Glauber-type stochastic dynamics. We study time variations of the average magnetizations in order to find the phases in the systems, and the temperature dependence of the dynamic sublattice magnetizations and total magnetization to obtain the dynamic phase transition (DPT) points and dynamic compensation points, respectively, as well as to characterize the nature (continuous and discontinuous) of transitions. Dynamic phase diagrams are also calculated for both DPT points and dynamic compensation effects. According to values of Hamiltonian parameters, besides the paramagnetic (p), antiferromagnetic (af) and antiferrimagnetic (i) fundamental phases, the af+p, i+p and i+af mixed phases, and the compensation temperature or P- and L-types behavior in the Neel classification nomenclature exist in the system.
  • Keywords
    Ising model; Neel temperature; crystal field interactions; magnetic transitions; magnetisation; stochastic processes; Glauber-type stochastic dynamics; Hamiltonian parameters; Neel classification; antiferrimagnetic phases; antiferromagnetic phases; crystal-field interaction; dynamic compensation temperature; dynamic phase transition; hexagonal lattice; magnetizations; mixed spin-1/2 Ising model; oscillating field; paramagnetic phases; phase diagrams; spin-3/2 Ising model; time-varying magnetic field; Compensation; magnetic field effects; magnetic materials; magnetic recording;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2009.2018937
  • Filename
    4957758