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

Abstract

Thermodynamic and magnetocaloric properties of the triple-layer graphene-like structure with mixed spin-3/2 and spin-5/2 have been reported by applying the Monte Carlo simulation. We found that for such system, various exchange couplings or external magnetic field affect greatly the magnetic behaviors and magnetocaloric effect. For example, the value of magnetization increases and the system becomes more stable with increasing the exchange couplings or external magnetic field. Besides, there exists a peak in each magnetic entropy change curve near the critical temperature. The value of it increases with decreasing exchange couplings or increasing the external magnetic field. In addition, when the exchange couplings decreases or the external magnetic field increases, the relative cooling power enhances. Finally, the hysteresis behaviors have also been investigated in detail.

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

“…From the figure, we can see that the remaining magnetization and the coercive field decrease gradually as T changes from a lower value to a larger; eventually, the loop vanishes at T = 6.5, corresponding to the critical temperature. Similar phenomena have also been found in the investigations of nanoislands [62,63], graphene-like quantum dots [64], laddertype graphene nanoribbons [65], a graphene monolayer [66] and triple-layer [67] as well as other magnetic nanosystems [68][69][70][71][72].…”

Compensation temperatures and hysteresis behaviors of a graphene-like trilayer

“…In our previous work, the magnetic behaviors of different graphene structures were studied within the MC method [32][33][34][35][36][37]. There has not yet been a detailed exploration of the distinctive magnetic and thermodynamic properties of ferrimagnetic graphene-like trilayers.…”

Dynamical analysis and microcontroller implementation of fractal resistive-capacitive shunted Josephson junction

“…Regarding fractal integration, the investigation of unpredicted matrix theory, with special consideration on energy level spectrum and fractal characteristics was exploited by Sani and Behnia [47], and complex association of inductivity from length as the overall contribution of both the 2D and 3D fractal behaviors of respectively the coplanar microwave transmission lines and the W is provided by not only fractal features of CTL twodimensional surface but fractal features of three-dimensional Au grain distribution over skin depth wide was investigated by Torkhov et al [48]. Also, the JJ was observed in different contributions including the investigation of the dynamics exhibited by coupling two JJ to micro-beam [49], evaluations of the dynamics of the long 0-π JJwith applications to digital single flux quantum circuits [50], the comparison of the theoretical evaluation of quantum optical micro maser and JJ-photonics systems [51], the observations ofchaos, transient chaos, the coexistence of solutions, coexistence of attractors, and bursting oscillation just to cite some were observed in the findings of [52], the investigation of the magnetic characteristics of artificial nanoparticles via their hysteresis curves for vibrating sample magnetometerwas carried out by [53], the detail investigation of the hysteresis characteristics of the thermodynamic and magnetocaloric behaviors of a three-layer graphene-like schematic [54], and finally the investigation of the JJ with high critical-temperaturesuperconductors [55].…”