Circular phase of a two dimensional ferromagnet with dipolar interactions
Fumitaka Matsubara, Junya Sasaki
TL;DR
This paper presents the first large-scale Monte Carlo simulation of a 2D ferromagnetic Heisenberg model with dipolar interactions, revealing a phase transition to a circular spin-ordered phase.
Contribution
It introduces an efficient simulation technique and uncovers a novel circular spin arrangement in the ordered phase of the model.
Findings
Phase transition observed in the model
Ordered phase exhibits circular spin configuration
Efficient simulation method developed
Abstract
We make for the first time a large-scale Monte-Carlo simulation of a ferromagnetic Heisenberg model with dipolar interactions on a two dimensional square lattice with open boundaries using an efficient new technique. We find that a phase transition occurs in the model and the ordered phase is characterized by a circular arrangement of the spins.
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Taxonomy
TopicsTheoretical and Computational Physics · Stochastic processes and statistical mechanics · Markov Chains and Monte Carlo Methods