The mixed spin-1/2 and spin-1 Ising system on a two-layer Bethe lattice

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AuteurKPLE, JOEL
AuteurAVOSSEVOU, GABRIEL YVES HUGUES
AuteurHONTINFINDE, FELIX
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2013
ResumeTwo layered magnetic Bethe lattice with varying coordination number q is introduced and numerically stud-ied via exact recursion relations within a pairwise approach. The system is influenced by competing in- terlayer and intralayer nearest-neighbour (NN) coupling interactions and also by the crystal and external magnetic fields. Cases where both layers are ferromagnetic or one is ferro and the other antiferromagnetic are considered. System configurations’ energy calculations are used to devise some ground state phase diagrams that have proven useful for the investigation of the very low temperature behaviour of the model. Analysis of the thermal behaviours of the total magnetization within the model parameters’ space yield interesting phase diagrams which display fascinating properties, in particular the presence of tricritical points. Increasing negative values of the crystal field strength stabilizes the disordered paramagnetic phase and sometimes gives rise to wavy transition lines.
DOI10.2478/s11534-013-0286-1
Autre identifiantBECDB-7455
URIhttps://dspace.uac.bj/handle/123456789/6714
Languefr
Fait partie deCentral European Journal of Physics
SujetBilayer Bethe lattice
Sujetmixed spin-1/2 and spin-1 model
Sujetground states
SujetRecursion relations
Sujettricritical and
Sujetcompensation points
TitreThe mixed spin-1/2 and spin-1 Ising system on a two-layer Bethe lattice
TypeArticle

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