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We present a numerical study of the random Blume-Capel model in three dimension. The phase diagram is characterized by spin-glass/paramagnet phase transitions both of first and second order in the thermodynamic sense. Numerical simulations…

无序系统与神经网络 · 物理学 2011-04-12 Matteo Paoluzzi , Luca Leuzzi , Andrea Crisanti

The spherical mean field approximation of a spin-1 model with p-body quenched disordered interaction is investigated. Depending on temperature and chemical potential the system is found in a paramagnetic or in a glassy phase and the…

无序系统与神经网络 · 物理学 2012-03-06 Ulisse Ferrari , Luca Leuzzi

We combine machine-learning (ML) techniques with Monte Carlo (MC) simulations and finite-size scaling (FSS) to study continuous and first-order phase transitions in Ising, Blume-Capel, and Ising-metamagnet spin models. We go beyond earlier…

统计力学 · 物理学 2025-02-04 Vasanth Kumar Babu , Rahul Pandit

The study of the mean-field static solution of the Random Blume-Emery-Griffiths-Capel model, an Ising-spin lattice gas with quenched random magnetic interaction, is performed. The model exhibits a paramagnetic phase, described by a stable…

统计力学 · 物理学 2009-11-10 Andrea Crisanti , Luca Leuzzi

We present a numerical study of the Blume-Capel model with quenched disorder in 3D. The phase diagram is characterized by spin-glass/paramagnet phase transitions of both first and second order in the thermodynamic sense. Numerical…

无序系统与神经网络 · 物理学 2015-05-19 L. Leuzzi , M. Paoluzzi , A. Crisanti

Nonequilibrium phase transition properties of a mixed Ising ferrimagnetic model consisting of spin-1/2 and spin-3/2 on a square lattice under the existence of a time dependent oscillating magnetic field have been investigated by making use…

统计力学 · 物理学 2014-08-27 Erol Vatansever , Hamza Polat

This work investigates the magnetic properties and the magnetocaloric effect in the spin-1 Blume-Capel model. The study was carried out using the mean-field theory from the Bogoliubov inequality to obtain the expressions of free energy,…

材料科学 · 物理学 2022-03-29 S. Oliveira , R. H. M. Morais , J. P. Santos , F. C. Sá Barreto

The Glauber model on a one-dimensional lattice with boundaries (for the ferromagnetic- and anti-ferromagnetic case) is considered. The large-time behaviour of the one-point function is studied. It is shown that, for any positive…

统计力学 · 物理学 2009-11-07 Mohammad Khorrami , Amir Aghamohammadi

We study the transient behavior of damage propagation in the two-dimensional spin-$1$ Blume-Capel model using Monte Carlo simulations with Metropolis dynamics. We find that, for a particular region in the second-order transition regime of…

统计力学 · 物理学 2022-10-20 Ajanta Bhowal Acharyya , Muktish Acharyya , Erol Vatansever , Nikolaos G. Fytas

We investigate the phase diagram for the spin-$3/2$ ferromagnetic Blume-Capel model in a transverse crystal field using the standard mean-field approximation within the framework of Bogoliubov inequality for free energy. We draw a very rich…

统计力学 · 物理学 2020-07-16 D. C. Carvalho , J. A. Plascak

We use a self-consistent Ornstein-Zernike approximation to study the Blume-Capel ferromagnet on three-dimensional lattices. The correlation functions and the thermodynamics are obtained from the solution of two coupled partial differential…

统计力学 · 物理学 2009-10-31 S. Grollau , E. Kierlik , M. L. Rosinberg , G. Tarjus

Magnetic response of the spin-$1/2$ cylindrical nanowire to the propagating magnetic field wave has been investigated by means of Monte Carlo simulation method based on Metropolis algorithm. The obtained microscopic spin configurations…

统计力学 · 物理学 2017-06-14 Erol Vatansever

The trilayered Blume-Capel ($S=1$) magnet with nearest neighbour intralayer ferromagnetic and nearest neighbour interlayer antiferromagnetic interaction is studied by Monte Carlo simulation. Depending on the relative interaction strength…

统计力学 · 物理学 2020-09-14 Muktish Acharyya

We study the thermodynamic properties of the three-dimensional Blume-Capel model on the simple cubic lattice by means of computer simulations. In particular, we implement a parallelized variant of the multicanonical approach and perform…

统计力学 · 物理学 2015-03-19 Johannes Zierenberg , Nikolaos G. Fytas , Wolfhard Janke

We investigate by means of Monte Carlo simulations the dynamic phase transition of the two-dimensional kinetic Blume-Capel model under a periodically oscillating magnetic field in the presence of a quenched random crystal-field coupling. We…

We study purely dissipative relaxational dynamics in the three-dimensional Ising universality class. To this end, we simulate the improved Blume-Capel model on the simple cubic lattice by using local algorithms. We perform a finite size…

统计力学 · 物理学 2020-02-28 Martin Hasenbusch

We study the magnetic and thermodynamic properties of a spin-$1/2$ Ising system containing three layers, each of which is composed exclusively of one out of two possible types of atoms, \textbf{A} or \textbf{B}. The \textbf{A-A} and…

统计力学 · 物理学 2019-10-04 Ian Jordy Lopez Diaz , Nilton Silva Branco

We broaden the study of the statistical physics of the spin-$S$ Blume-Capel model with ferromagnetic mean-field interactions $J$ in competition with short-range antiferromagnetic interactions $K$ in a linear chain in the thermodynamic…

We explicitly demonstrate the universality of critical dynamics through unprecedented large-scale GPU-based simulations of two out-of-equilibrium processes, comparing the behavior of spin-$1/2$ Ising and spin-$1$ Blume-Capel models on a…

The critical behavior of the semi-infinite Blume-Capel and Blume-Emery-Griffiths models is investigated in the pair approximation of the Cluster Variation Method. Equations for bulk and surface order parameters and n.n. correlation…

凝聚态物理 · 物理学 2009-10-22 Carla Buzano , Alessandro Pelizzola