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
Link To Document :
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