Dielectric properties of the mixed spins (S=5/2, σ=2) and (σ= 5/2 and S= 2) in nanotube system: A Monte Carlo study

Sahdane, T.; Masrour, R.; Jabar, A.

doi:10.1016/j.ssc.2020.113851

Cited by 31 publications

(3 citation statements)

References 37 publications

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“…Over the last decades, several numerical methods have been proposed, such as the exact diagonalization (ED) method 8 , the density matrix renormalization group (DMRG) method 9 – 11 , as well as various quantum Monte Carlo (QMC) methods 12 – 14 . There are also many well-developed spin-based MC methods, which have been adopted for various correlated systems 15 , 16 . These numerical methods have played an important role in improving the understanding of SCQMB systems over the past few decades.…”

Section: Introductionmentioning

confidence: 99%

Efficient world-line-based quantum Monte Carlo method without Hubbard–Stratonovich transformation

Wang

Pan

Sun

2022

Sci Rep

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By precisely writing down the matrix element of the local Boltzmann operator ($${\mathrm{e}}^{-\tau h}$$ e - τ h , where $$h$$ h is the Hermitian conjugate pairs of off-diagonal operators), we have proposed a new path integral formulation for quantum field theory and developed a corresponding Monte Carlo algorithm. With the current formula, the Hubbard–Stratonovich transformation is not necessary, accordingly the determinant calculation is not needed, which can improve the computational efficiency. The results show that, the simulation time has the square-law scaling with system sizes, which is comparable with the usual first-principles calculations. The current formula also improves the accuracy of the Suzuki–Trotter decomposition. As an example, we have studied the one-dimensional half-filled Hubbard model at finite temperature. The obtained results are in excellent agreement with the known solutions. The new formula and Monte Carlo algorithm could be applied to various studies in future.

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Section: Introductionmentioning

confidence: 99%

Efficient world-line-based quantum Monte Carlo method without Hubbard–Stratonovich transformation

Wang

Pan

Sun

2022

Sci Rep

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“…Moreover, the model utilized a study of thermal and magnetic features of the molecular-based AFe II Fe III (C 2 O 4 ) 3 nanoribbons [27] and nanographene layer [28] within the MCS, the magnetic features of Fe 7 S 8 compound by using by the MFA and MCS, [29] and the dielectric features of BiFeO 3 /YMnO 3 bilayer films within the MCS, [30] and Fe 3 S 4 component within Ab-initio calculations and the MCS. [31] The model also utilized a prototypical model to study some properties of nanomaterials, such as core/shell structure, [32] a bilayer nanoisland with a grapheme-like structure, [33] a nanotube structure, [34] armchair graphene nanoribbons, [35] a monolayer coronene like nanostructure, [36] and nanographene. [37] However, the dynamic features of the mixed-spin (2, 5/2) IFS were not studied in detail.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Magnetic Features of a Mixed‐Spin‐2 and Spin‐5/2 Ising Ferrimagnetic System under a Time‐Dependent Oscillating Magnetic Field: Path Probability Method Approach

Gençaslan

Özlü

Keskín

2022

Physica Status Solidi (b)

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A study, within the path probability method, of the dynamic magnetic features of the mixed spin (2, 5/2) Ising ferrimagnetic system on a hexagonal lattice under the presence of a sinusoidal external magnetic field is presented. The Hamiltonian of the system contains intersublattice, intrasublattice, and crystal‐field interactions. The intersublattice interaction is taken as antiferromagnetic. The time variations of average dynamic magnetizations and the thermal behavior of the dynamic magnetizations are investigated to obtain the phases in the system and to characterize the nature of the dynamic phase transitions and find the dynamic phase transition temperature points. The dynamic phase diagrams in six different phase planes are presented, in which they contain the paramagnetic (p) phase, three different ferrimagnetic (i 1, i 2, i 3) fundamentals, and the p + i 1, i 1 + i 2, and i 2 + i 3 mixed phases as well as the dynamic tricritical point and the dynamic double critical end point, depending on the interaction parameters. The dynamic compensation behavior is also examined and only N‐type behaviors are observed. Some of the obtained dynamic phase diagrams are in qualitatively good agreement within some works on the dynamics of mixed‐spin Ising system.

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“…[23]. The dielectric properties of mixed spins (S = 5/2 and σ = 2) model, which is constructed for a nanotube structure were studied by Masrour et al [24] via MC simulation for several sizes.…”

Section: Introductionmentioning

confidence: 99%

Insight into dynamic magnetic properties of YMnO3/FM bilayer in a time-dependent magnetic field

Chang

Wang

et al. 2021

Preprint

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Based on the Monte Carlo simulation, a mixed-spin (5/2, 2, 3/2) Ising model is constructed to investigate the dynamic magnetic properties of antiferromagnetic/ferromagnetic YMnO 3 /FM bilayer under the existence of a time-dependent magnetic field. The effects of exchange interaction, oscillating magnetic field as well as temperature are involved in this work. Masses of numerical results of the dynamic order parameter, susceptibility, internal energy, and blocking temperature are obtained with diverse physical parameters. Moreover, the phase diagrams and the hysteresis loops of the system are discussed in detail as well for a better understanding of the dynamic properties of the present system.

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Dielectric properties of the mixed spins (S=5/2, σ=2) and (σ= 5/2 and S= 2) in nanotube system: A Monte Carlo study

Cited by 31 publications

References 37 publications

Efficient world-line-based quantum Monte Carlo method without Hubbard–Stratonovich transformation

Efficient world-line-based quantum Monte Carlo method without Hubbard–Stratonovich transformation

Dynamic Magnetic Features of a Mixed‐Spin‐2 and Spin‐5/2 Ising Ferrimagnetic System under a Time‐Dependent Oscillating Magnetic Field: Path Probability Method Approach

Insight into dynamic magnetic properties of YMnO3/FM bilayer in a time-dependent magnetic field

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