Critical phenomena in a spin-1/2 Baxter–Wu triangular multilayers with Ising-like coupling

L.N. Jorge, L.S. Ferreira, Claudio J. DaSilva and A.A. Caparica

Physica A: Statistical Mechanics and its Applications, 2025, vol. 661, issue C

Abstract: Our research focuses on the creation of a 3D layered system model that adheres to a three-spin Baxter–Wu-like interaction. To address the phase transition problem, we use entropic sampling simulations to construct the density of states and analyze various quantities such as the total magnetization, average energy, magnetic susceptibility, energy probability distribution function, and inverse microcanonical temperature. Once we established that the system undergoes a first-order phase transition, we carried out a finite-size scaling procedure by carefully studying the critical behavior of the minimum temperature of cumulants for energy and magnetization. We also computed the pseudocritical temperature, Tc(L), which is the temperature where the energy density probability distribution has a double peak. Based on our analysis, we were able to obtain an estimation of the transition temperature as Tc≈3.94 and the latent heat value ΔE≈1.2 at this point.

Keywords: Baxter-Wu; Entropic sampling simulations; First-order phase transition; Finite size scaling (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:661:y:2025:i:c:s0378437125000494

DOI: 10.1016/j.physa.2025.130397

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