The effect of competition between the frequency of the field and the frequency of the spin flipping on the kinetics of Ising metamagnet |
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Authors: | Gul Gulpinar Dogan Demirhan |
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Institution: | a Dokuz Eylül University, Department of Physics, 35160-Buca, ?zmir, Turkey b Ege University, Department of Physics, 35100-Bornova, ?zmir, Turkey |
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Abstract: | We consider the effect of a variable representing the competition between the frequency of the field and the frequency of the spin flipping (Ω) on the dynamics of the metamagnetic Ising model in a cubic lattice under the presence of a time varying (oscillating) external magnetic field. The system is modelled with a formalism of master equation at a mean-field level. The time averaged staggered magnetization (Ms) acts as the order parameter and divides temperature field plane into three regions: anti-ferromagnetic, paramagnetic and coexistence of anti-ferromagnetic and paramagnetic phases. It is observed that the topology of the dynamical phase diagram depends strongly on Ω as well as the ratio between interlayer and intralayer couplings. |
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Keywords: | 62 65 +k 62 80 +f 64 60 Cn 05 50 +q |
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