Dynamic dipolar and quadrupolar susceptibilities for the spin-1 Blume-Emery-Griffiths model based on Onsager theory of irreversible thermodynamics

Pawlak, A.; Erdem, Rıza; Gulpinar, Gul

doi:10.1016/j.jmmm.2018.09.115

Journal of Magnetism and Magnetic Materials

2019

DOI: 10.1016/j.jmmm.2018.09.115

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Dynamic dipolar and quadrupolar susceptibilities for the spin-1 Blume-Emery-Griffiths model based on Onsager theory of irreversible thermodynamics

A. Pawlak

Rıza Erdem

Gul Gulpinar

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Cited by 5 publications

(1 citation statement)

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“…A local minimum or a sharp dip is seen at the C T for magnetic dispersion 1  . These results are also in coherent with other theoretical studies of dynamic susceptibility for well-known spin systems [34,35,[39][40][41][42][43][44][45][46][47].…”

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confidence: 90%

On the Loci of Relaxation Time and Magnetic Dispersion Maxima in the Mean-Field Ising Model

Özüm

2020

Sakarya University Journal of Science

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Based on the phenomenological approach, loci of relaxation time and magnetic dispersion maxima near the critical regime in a spin-1/2 mean-field Ising model were performed. The shift in temperature (T) of relaxation time (τ) maximum was detected and its behavior near the secondorder transition points are presented at different magnetic field values (h) and different lattice coordination numbers (q). An expression for the dynamic (or complex) susceptibility (χ = χ1 -iχ2) is also derived. The temperature dependence of the magnetic dispersion (χ1) and magnetic absorption (χ2) factors have been studied near the critical regime. It is found that the maximum of χ1 as a function of frequency (ω) and kinetic coefficient (L) obeying an approximately exponential increases and decreases in T-ω and T-L planes near the critical region.

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confidence: 90%

On the Loci of Relaxation Time and Magnetic Dispersion Maxima in the Mean-Field Ising Model

Özüm

2020

Sakarya University Journal of Science

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Hysteretic behavior of quadrupolar ordering in a 2D magnetic spin˗1 Ising nanoparticle

Erdem

Yalçın

Özüm

et al. 2021

Chinese Journal of Physics

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Geometrical aspects of the multicritical phase diagrams for the Blume–Emery–Griffiths model

2023

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we used the thermodynamic geometry in the Ruppeiner formalism to study the geometrical aspects of the multicritical phase diagrams for the spin-1 Blume-Emery-Griffiths model in the presence of crystal field. We derived an expression for the thermodynamic curvature or Ricci scalar (R) and analyzed its temperature and crystal field behaviours near interesting critical and multicritical points. Our findings are presented as geometrical phase diagrams including critical and multicritical topology. From these diagrams, new vanishing curvature lines (R = 0) extending into the ferromagnetic or paramagnetic phases beyond the critical points and zero point temperature are observed.

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Dynamic dipolar and quadrupolar susceptibilities for the spin-1 Blume-Emery-Griffiths model based on Onsager theory of irreversible thermodynamics

Cited by 5 publications

References 42 publications

On the Loci of Relaxation Time and Magnetic Dispersion Maxima in the Mean-Field Ising Model

On the Loci of Relaxation Time and Magnetic Dispersion Maxima in the Mean-Field Ising Model

Hysteretic behavior of quadrupolar ordering in a 2D magnetic spin˗1 Ising nanoparticle

Geometrical aspects of the multicritical phase diagrams for the Blume–Emery–Griffiths model

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