Monte Carlo study of magnetic and thermodynamic properties of a ferrimagnetic Ising nanoparticle with hexagonal core-shell structure

Wang, Wei; Chen, Dongdong; Lv, Dan; Liu, Jinping; Li, Qi; Peng, Zhou

doi:10.1016/j.jpcs.2017.04.014

Cited by 96 publications

(14 citation statements)

References 88 publications

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“…Hence, the compensation temperature remains constant. Similar behavior has also been observed in nanoparticles with hexagonal core-shell structure [36]. To explore the effect of exchange ferrimagnetic interaction J12, we plot in Fig.…”

Section: Phase Diagramssupporting

confidence: 66%

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

Gharaibeh

Badarneh

Alqaiem

et al. 2021

Journal of Magnetism and Magnetic Materials

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Section: Phase Diagramssupporting

confidence: 66%

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

Gharaibeh

Badarneh

Alqaiem

et al. 2021

Journal of Magnetism and Magnetic Materials

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“…[ 41 ] This particular combination of spins has been studied with mean field (MF) theory [ 42 ] and Monte Carlo (MC) techniques, [ 43 ] with Hamiltonians that include an AF interaction between near neighbors, crystal and external fields. The results indicate that for very particular combinations of the crystal fields, the 7/2–3/2 system presents multiple hysteresis loops and a superparamagnetic phase, [ 43,44 ] effects that might have interesting applications in nanomedicine [ 45 ] and magnometry. [ 46 ] These properties are very relevant to understand molecular‐based magnetic compounds and their applications in data storage among others.…”

Section: Introductionmentioning

confidence: 99%

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

Espriella

Karimou

Buendı́a

2021

Physica Status Solidi (b)

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Mean field and Monte Carlo simulations techniques are applied to study the behavior of a mixed Ising spin model in a square lattice where spins 7/2 are located in alternating sites with spins 3/2. There is an antiferromagnetic interaction between nearest neighbors, ferromagnetic interactions between next-nearest neighbors, crystal fields, and a magnetic external field. The role of the different interactions in the magnetic behavior of the system is explored. It is found that depending on the combination of parameters in the Hamiltonian this system presents multiple hysteresis loops, exchange bias, compensation temperatures, and discontinuous magnetizations. The results are compared with previous studies that do not include the ferromagnetic next-nearest neighbor interactions and found that they can have a strong effect in the magnetic behavior of the system.

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“…[ 1 ] Every day, new magnetic materials are being synthesized by alternating molecules of different spins on an orderly lattice such as magnetic nanowires Co−Cu [ 2–4 ]

{Ga}_{1 - x} {Cu}_{x} N

{Fe}_{3} {normalO}_{4}

, iron/iron oxide core−shell, [ 5 ] etc. Nanomagnetic structures such as nanoparticles, nanotubes, nanorods, and nanofilms, [ 6–12 ] also can be characterized magnetically by mixed combinations of spins. These complex materials have very interesting applications such as in ultrahigh‐density magnetic storage devices, [ 13 ] ultrahigh‐density recording media, [ 14 ] and biomedical applications, [ 15,16 ] among others.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo Simulation of a Mixed Spin‐1/2 and Spin‐3/2 Ising Ferrimagnetic System with Site Dilution

Sánchez-Villalobos

Buendı́a

2021

Physica Status Solidi (b)

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A study of the magnetic behavior of a mixed Ising system on a square lattice, where spins σ=±1/2 are located on alternating sites with spins S=±3/2,±1/2, is presented. The change in the magnetic behavior of the system when empty sites are introduced in one of the sublattices or in both is analyzed. This system can be thought of as a site‐diluted ferrimagnet or as a system with nonmagnetic impurities. The Hamiltonian of the model contains an exchange interaction between nearest neighbors S–σ, next‐nearest‐neighbors σ–σ, and a crystal field. The dependence of the total magnetization, the sublattice magnetizations, and the specific heat, with dilution is calculated. It is found that the behavior of the critical and compensation temperatures is strongly affected by dilution and where it is located. There is critical dilution, above which the compensation temperature disappears.

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Monte Carlo study of magnetic and thermodynamic properties of a ferrimagnetic Ising nanoparticle with hexagonal core-shell structure

Cited by 96 publications

References 88 publications

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

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

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

Monte Carlo Simulation of a Mixed Spin‐1/2 and Spin‐3/2 Ising Ferrimagnetic System with Site Dilution

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