Dynamic magnetic properties of Ising graphene-like monolayer

Abstract

Dynamic magnetic properties of the mixed-spin (3/2, 5/2) Ising graphene-like monolayer in an oscillating magnetic field are studied by means of Monte Carlo simulation. The effects of Hamiltonian parameters such as crystal field and time-dependent oscillating magnetic field on the dynamic order parameter, susceptibility and internal energy of the system are well presented and explained. Moreover, much attention has also been dedicated to the phase diagrams with different parameters in order to better comprehend the impacts of these parameters on the critical temperature. Our results reveal that the crystal fields of two sublattices have similar effects on the critical temperature, but the bias field and amplitude of oscillating field have opposite effects on it. We hope that our research can be of guiding significance to the theoretical and experimental studies of graphene-like monolayer.

Monte Carlo study of the magnetic properties and magnetocaloric effect of an AFM/FM BiFeO3/Co bilayer

“…Taking interlayer exchange coupling J cd and intralayer exchange coupling |J z | into consideration, we can conclude that both have a similar impact on χ and T C . Similarly, these results are in good accordance with that in [46,48,58,59]. We have to mention that the temperature corresponding to the maximum is near the critical temperature.…”

The vacancy defects and oxygen atoms occupation effects on mechanical and electronic properties of Mo5Si3 silicides

“…where E vacancy X and E perf total represent the total energy of Mo 5 Si 3 with X (X=Si and Mo) vacancies and a perfect Mo 5 Si Except for vacancy formation energy, both thermodynamic and dynamic data determine the structural stability of the solid [31][32][33]. The thermodynamic stability is mainly related to the chemical potential between atoms, which is determined by the enthalpy of formation (ΔH) [34,35]. Therefore, to investigate the thermodynamic stability of Mo 5 Si 3 with vacancy defects, the calculation of the formation enthalpy can be expressed by:…”

Thermodynamic and magnetocaloric properties of a triple-layer graphene-like structure

“…By applying the MC simulation, the magnetic properties of different structures have been studied in our previous work [31][32][33][34][35][36]. As far as our information goes, there exist few studies of the MCE of the triple-layer graphene-like structures by the MC simulation.…”