Dynamical Properties of Spin-Crossover Solids Within the Kinetic Spin-1 BEG Model in the Presence of a Time-Dependent Magnetic Field

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AuteurOKE, DJIDJOHO TOUSSAINT
AuteurOGOU, BOLARINWA SALIOU
AuteurHONTINFINDE, FELIX
AuteurBOUKHEDDADEN, KAMEL
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2019
ResumeSpin-crossover (SCO) and Prussian blue analogs (PBAs) materials are investigated in 2D with a three-state Blume–Emery–Griffiths (BEG) model where each spin interacts with its nearest neighbors (nn) and may be either in high-spin (HS) or low-spin (LS) state. The interactions through the system lattice are temperature-dependent to account for spin-phonon interactions. The system is also in contact with an oscillating magnetic field energy. The generated numerical results by the dynamic mean field theory (DMFT) study approach are consistent with those derived by kinetic Monte Carlo (KMC) simulations with Glauber dynamics and Arrhenius transition rates. First-order transitions with thermally induced hysteresis phenomena have been observed. Near the hysteresis loops, the model exhibits throughout relaxation curves, some fluctuations in the LS phase, strengthened by increasing temperature where this phenomenon becomes temperature- and magnetic field-dependent.
DOI10.1002/adts.201800192
Autre identifiantBECDB-7242
URIhttps://dspace.uac.bj/handle/123456789/6521
Languefr
Fait partie deAdvanced Theory and Simulations
Sujet2D-nucleation
SujetDynamic mean-field approach
Sujetkinetic Monte Carlo simulations
SujetPhase diagram
SujetRelaxation dynamics
SujetSpin-Crossover Compounds
TitreDynamical Properties of Spin-Crossover Solids Within the Kinetic Spin-1 BEG Model in the Presence of a Time-Dependent Magnetic Field
TypeArticle

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