کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1861037 | 1037482 | 2009 | 6 صفحه PDF | دانلود رایگان |
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 (MsMs) 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.
Journal: Physics Letters A - Volume 373, Issue 5, 26 January 2009, Pages 511–516