Dynamic phase transition properties for the mixed spin-(1/2, 1) Ising model in an oscillating magnetic field

Abstract

a b s t r a c tHerein we study the dynamic phase transition properties for the mixed spin-(1/2, 1) Ising model on a square lattice under a time-dependent magnetic field by means of the effective-field theory (EFT) with correlations based on Glauber dynamics. We present the dynamic phase diagrams in the reduced magnetic field amplitude and reduced temperature plane and find that the phase diagrams exhibit dynamic tricitical behavior, multicritical and zero-temperature critical points as well as reentrant behavior.We also investigate the influence of frequency (ω) and observe that for small values of ω the mixed phase disappears, but for high values it appears and the system displays reentrant behavior as well as a critical end point.

Dynamic Magnetic Features of a Mixed‐Spin‐2 and Spin‐5/2 Ising Ferrimagnetic System under a Time‐Dependent Oscillating Magnetic Field: Path Probability Method Approach

“…For bigger negative values of , namely , the DPD is similar to Figure 4d except the phase emerges instead of the phase and the compensation temperature line disappeared, illustrated in Figure 4e, , d = 0.3 . Similar DPDs with Figure 4a were reported in the mixed spin (1/2, 1), [ 73 ] (1, 3/2), [ 74 ] and (1, 2) [ 72 ] IFS, and the similar DPD with Figure 4b were observed in the mixed spin (1/2, 1), [ 69,73,75–77 ] (1, 3/2), [ 78 ] (1, 2), [ 72 ] and (2, 5/2) [ 38,40,48 ] IFS. Moreover, qualitatively similar DPDs with Figure 4c–e were found in the mixed‐spin (1, 2) IFS, [ 72 ] and a similar DPD with Figure 4c were reported in the mixed‐spin (1, 3/2) IFS [ 79 ] ther hand, some of the first‐order phase transition lines, which might be artifact of the DMFA, were observed in the mixed spin (2, 5/2) bilayer system by the DMFA, [ 43 ] but are not observed by the PPM, compare Figure 4 and 5 in ref.…”

“…In numerical calculations, we took the intersublattice interaction is antiferromagnetic, i.e., , because it gives more riches and interesting dynamic critical behaviors. [ 38,41,43,49,69–73 ] We fixed and in all numerical calculation because most systems have greater relaxation durations for the translation and shorter relaxation times for rotation and ω was taken as .…”

Magnetic properties and phase diagrams of mixed spin-1 and spin-1/2 Ising model on a checkerboard square structure: A Monte Carlo study

“…The effective field theory has been used to study the critical phenomena in a mixed spin-1 and spin-2 Ising model on honeycomb [17] and the dynamic phase transition properties for the mixed spin-(1/2, 1) Ising model on a square lattice [28] as well as two nanoscaled thin films with dilution at the surfaces [29]. This work was motivated by the research done by Girovsky, Jan et al [30].…”

Insight into dynamic magnetic properties of YMnO3/FM bilayer in a time-dependent magnetic field

“…The phase transition and dynamic critical temperature of the system were discussed in detail [28]. Moreover, unique dynamic magnetic properties were discovered in other mixed-spin systems in the time-dependent magnetic field [29][30][31][32].…”