A new theoretical approach on the spin-crossover materials: Correlated Mean-Field and Effective-Field theories

Oliveira, Samuel de; Francisco, R.M.; Santos, J.P.

doi:10.1016/j.jmmm.2021.168961

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2024

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“…Here, h b , h o , and ω refer to the bias field, amplitude, and angular frequency, respectively, and t represents time. Based on the EFT [27][28][29][30][31], the dynamic-order parameter Q is described as follows:…”

Section: Calculation Methodsmentioning

confidence: 99%

Magnetic behaviour of a mixed-spin ising model on a two-dimensional square-octagon lattice in a dynamic magnetic field

Wang,

Jiang

2024

Phys. Scr.

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The magnetic behaviours of a two-dimensional square-octagon lattice with mixed spin 5/2 and spin 1 magnetic atoms are investigated in a dynamic magnetic field using effective field theory with correlations. We studied the effects of exchange coupling, anisotropy, oscillating magnetic fields, and temperature on the dynamic magnetic and thermodynamic properties of the square-octagon lattice. The dynamic magnetisation, order parameters, susceptibility, internal energy, and phase diagram of the system were obtained. These results significantly contribute to our understanding of the dynamic magnetic properties of two-dimensional materials. The ability to manipulate and control magnetic behaviour in two dimensions holds promise for the creation of more efficient and versatile devices.

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Section: Calculation Methodsmentioning

confidence: 99%

Magnetic behaviour of a mixed-spin ising model on a two-dimensional square-octagon lattice in a dynamic magnetic field

Wang,

Jiang

2024

Phys. Scr.

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New effective field theory in a cluster with n-sites correlating with n-free spins

Santos

2024

Journal of Magnetism and Magnetic Materials

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A new theoretical approach on the spin-crossover materials: Correlated Mean-Field and Effective-Field theories

Cited by 2 publications

References 65 publications

Magnetic behaviour of a mixed-spin ising model on a two-dimensional square-octagon lattice in a dynamic magnetic field

Magnetic behaviour of a mixed-spin ising model on a two-dimensional square-octagon lattice in a dynamic magnetic field

New effective field theory in a cluster with n-sites correlating with n-free spins

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