Dynamic critical behavior of the classical anisotropic BCC Heisenberg antiferromagnet

TL;DR

This paper investigates the critical dynamic behavior of the classical anisotropic BCC Heisenberg antiferromagnet using advanced simulation techniques to estimate the dynamic critical exponent and compare with existing theories and experiments.

Contribution

It introduces a novel simulation approach based on Suzuki-Trotter decomposition to accurately study the critical dynamics of the model.

Findings

Estimated dynamic critical exponent z=2.25 ± 0.08

Probed the narrow asymptotic critical region

Compared results with theories and experiments

Abstract

Using a recently implemented integration method [Krech et. al.] based on an iterative second-order Suzuki-Trotter decomposition scheme, we have performed spin dynamics simulations to study the critical dynamics of the BCC Heisenberg antiferromagnet with uniaxial anisotropy. This technique allowed us to probe the narrow asymptotic critical region of the model and estimate the dynamic critical exponent $z=2.25 \pm 0.08$. Comparisons with competing theories and experimental results are presented.