Quantum Monte Carlo simulation of the ferroelectric or ferrielectric nanowire with core shell morphology

Feraoun, A.; Zaim, A.; Kerouad, M.

doi:10.1016/j.jpcs.2016.05.005

Cited by 20 publications

(2 citation statements)

References 61 publications

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“…More recently studies with MCS in hexagonal ferrimagnetic Ising nanowire [12], Blume Capel model [29] and Quantum Monte Carlo [13] show the appearance of plateaus and different forms of hysteresis loops. However, mixed spin core/shell systems have been less investigated.…”

Section: Introductionmentioning

confidence: 96%

Hysteresis in core/shell nanowire with mixed spin Ising

Barrero-Moreno¹,

Acosta-Medina²

2018

astp

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In this work, Monte Carlo simulations (MCS) based on Metropolis algorithm were performed to study the hysteresis loops and coercive field of a core/shell nanowire with spins S = ± 5 2 , ± 3 2 , ± 1 2 and σ = ± 3 2 , ± 1 2 , respectivility, considering an Ising ferrimagnetic system. The influence of nearest neighbors exchange interactions and crystal field anisotropy on hysteresis and coercive field behaviors of the system has been analyzed. The calculations were performed using a single-spin flip algorithm. In each spin-flip attempt, we randomly choose a site. The results show that, for a system without anisotropy triple hysteresis loops appear for certain values. The plateaus in hysteresis loops are due to the values of the spins projections. The change of the values for anisotropy influence the shape of the hysteresis loops without present triple hysteresis loops. Also, the effect of the anisotropy in the coercive field was analyzed, where the coercive field present enhanced for certain range of the temperatures. Finally, for high values of the applied external magnetic field, the Zeeman effect takes control over the system.

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Section: Introductionmentioning

confidence: 96%

Hysteresis in core/shell nanowire with mixed spin Ising

Barrero-Moreno¹,

Acosta-Medina²

2018

astp

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“…On the other hand, from the theoretical point of view, a great deal of studies have been devoted to investigate the thermal and magnetic features of nanoparticles such as nanocube, nanosphere, nanorod, nanotube as well as nanowire by means of several types of methods such as mean-field theory (MFT) [11,12,13], Green function formalism (GF) [14], cluster variation method (CVM) [15], effective-field theory (EFT) with single-site correlations [16,17,18,19,20,21,22], and MC simulation technique [11,23,24,25,26,27,28,29,30,31,32,33]. For example, by making use of MC simulation technique with Metropolis algorithm, thermal and magnetic phase transition properties of antiferromagnetic/ferrimagnetic core/shell nanoparticles have been studied by Vasilakaki and co-workers in detail [25].…”

Section: Introductionmentioning

confidence: 99%

Thermal and magnetic phase transition properties of a binary alloy spherical nanoparticle: A Monte Carlo simulation study

Vatansever

2017

Journal of Magnetism and Magnetic Materials

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We have used the Monte Carlo (MC) simulation method with Metropolis algorithm to study the finite temperature phase transition properties of a binary alloy spherical nanoparticle with radius r of the type A p B 1−p . The system consists of two different species of magnetic components, namely, A and B, and the components of the system have been selected A and B to be as σ = 1/2 and S = 1, respectively. A complete picture of phase diagrams, total magnetizations and susceptibilities in related planes have been presented, and the main roles of the radius of nanoparticle, active concentration value of type-A atoms as well as other system parameters on the thermal and magnetic phase transition features of the considered system have been discussed in detail. Our MC investigations clearly show that it is possible to control the critical characteristic behaviors of the system with the help of adjustable Hamiltonian parameters.

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The mixed spin-(1,3/2) Ising nanowire with core/inter-shell/outer-shell morphology

Feraoun

Kerouad

2018

Appl. Phys. A

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Quantum Monte Carlo simulation of the ferroelectric or ferrielectric nanowire with core shell morphology

Cited by 20 publications

References 61 publications

Hysteresis in core/shell nanowire with mixed spin Ising

Hysteresis in core/shell nanowire with mixed spin Ising

Thermal and magnetic phase transition properties of a binary alloy spherical nanoparticle: A Monte Carlo simulation study

The mixed spin-(1,3/2) Ising nanowire with core/inter-shell/outer-shell morphology

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