Magnetic properties of a cubic nanoisland in the longitudinal magnetic field: A Monte Carlo study

Peng, Zhou; Wang, Wei; Lv, Dan; Liu, Rui-jia; Li, Qi

doi:10.1016/j.spmi.2017.05.055

Cited by 35 publications

(4 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be seen that when JA/|JAB|=0.5 (Fig.10(a)), the system has no loops and by increasing JA/|JAB|, a hysteresis loop appears as in the case of JA/|JAB|=4 (Fig.10 (b)), which becomes larger as JA/|JAB| increase. These results are in great agreement with those obtained theoretically and experimentally in Refs [55,59,60]…”

supporting

confidence: 92%

Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study

Lafhal

Jalal

Hasnaoui

et al. 2023

JNanoR

View full text Add to dashboard Cite

The magnetic and thermal properties of a ferrimagnetic mixed spin-1 and spin-2 cubic Ising nanowire are studied by using the Monte Carlo simulation. The influences of the nearest (JAB) and next-nearest neighbor (JA and JB) exchange interactions and the single-ion anisotropies (DA and DB) on the critical and compensation temperatures are illustrated. Moreover, the phase diagrams on the (temperature, anisotropy) plane are plotted for several values of JA/|JAB|. The system shows very rich and interesting behaviors, namely first and second order phase transitions, tricritical points and compensation phenomenon. Finally, the dependence of hysteresis loops on the anisotropies, the exchange interactions and the temperature is also investigated.

show abstract

supporting

confidence: 92%

Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study

Lafhal

Jalal

Hasnaoui

et al. 2023

JNanoR

View full text Add to dashboard Cite

show abstract

“…If DC/JC < -2.7, as when DC/JC = -3.0, the number of hysteresis loops vanishes, indicating that the system becomes paramagnetic. Several works [39,41,47,48,60,64] have given similar results. Finally, the influence of temperature on the hysteresis loops of the total system as well as the core and shell two sublattices with fixed values of DC/JC = -0.5, DS/JC = -1, Jin/JC = -0.2, and JS/JC = 0.4 is presented in Figs.…”

Section: Hysteresis Loopssupporting

confidence: 61%

Mean Field Study of a Cylindrical Ferrimagnetic Nanotube with Different Anisotropies

Al Qahoom,

El Kihel,

Aharrouch

et al. 2023

JNanoR

View full text Add to dashboard Cite

In this paper, the ferrimagnetic mixed spins (1, 5/2) Blume-Capel model is proposed to investigate the phase diagrams and hysteresis behaviors of a magnetic cylindrical nanotube with a core-shell structure using the mean-field approximation based on the Bogoliubov inequality for the Gibbs free energy. The core sites are occupied by σ= ±1, 0 spins, whereas the shell sites are filled by S= ±5/2, ±3/2, ±1/2 spins. The effects of exchange couplings (Jin, JS) and single-ion anisotropies (DC, DS) on core, shell, and total magnetizations are investigated, as well as hysteresis behaviors. The entropy, free energy, and specific heat are analyzed to establish the stability of the solutions. The presentation and discussion of phase diagrams is detailed. The system shows a first-order and second-order phase transitions, as well as tricritical and critical end- points. In addition, the system shows compensation and reentrant behaviors. Various multiple hysteresis loop behaviors are seen according on the Hamiltonian parameters, such as the presence of triple, quintuple, and septuple hysteresis loops.

show abstract

“…Compared with bulk materials, lowdimensional structural materials such as nanoislands and nanotubes exhibit some special properties, such as the frustration effect and reentry phenomenon [3]. Furthermore, owing to its diminutive size and superior performance, nanoisland has a wider application prospect in the domains of microelectronic devices and nextgeneration data storage, thus making it a current focus of theoretical and experimental research [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…However, as there is no exact solution for the 3D TIM, various approximate methods have been employed to investigate its critical properties. Monte Carlo simulation (MC) [8][9][10] and Effective Field Theory (EFT) [14][15][16][17] have been used to study the phase transition properties of nanoislands, and it was found that the polarization of the islands shows a step-like change with temperature or external field within a certain range of parameters. Additionally, solving the motion equation of the Green's function [20] in quantum statistical physics is a useful method for studying the ferroelectric or ferromagnetic phase transition properties of lowspin materials from low to high temperature ranges.…”

Section: Introductionmentioning

confidence: 99%

Ferroelectric phase transitions of nanoislands based on transverse ising model

Chen,

Mo,

2023

Phys. Scr.

View full text Add to dashboard Cite

Based on the transverse field Ising model, the phase transition properties of nanoislands with a spin-1/2 are studied by using the usual decoupling approximation of Fermi-type Green’s function. The phase diagram indicates that the phase transition curve (J S /J = t c , Ω S /J ∼ t c ) is highly sensitive to the interlayer exchange interaction (J R /J) and the ratio of surface to center transverse fields (Ω S /Ω). The polarization diagram reveals that the polarization curve exhibits steps attributed to spin inversion, and the temperature of the step point corresponds to the temperature at which spin configuration changes.

show abstract

Magnetic properties of a cubic nanoisland in the longitudinal magnetic field: A Monte Carlo study

Cited by 35 publications

References 52 publications

Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study

Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study

Mean Field Study of a Cylindrical Ferrimagnetic Nanotube with Different Anisotropies

Ferroelectric phase transitions of nanoislands based on transverse ising model

Contact Info

Product

Resources

About