Dipolar interaction effects in the thermally activated magnetic relaxation of two-dimensional nanoparticle ensembles
S. I. Denisov, T. V. Lyutyy (Department of Mechanics and, Mathematics, Sumy State University, Ukraine) K. N. Trohidou (Institute of, Materials Science, NCSR "Demokritos" Greece)
TL;DR
This study investigates how dipolar interactions influence the thermally activated magnetic relaxation in 2D nanoparticle ensembles, highlighting the importance of correlation effects, bias fields, and lattice structure through numerical and mean-field analyses.
Contribution
It introduces a combined numerical and mean-field approach to analyze the impact of correlations and lattice structure on magnetic relaxation in dipolar nanoparticle systems.
Findings
Correlation effects significantly alter relaxation dynamics.
Bias magnetic fields influence relaxation behavior.
Lattice structure impacts magnetic relaxation processes.
Abstract
The thermally activated magnetic relaxation in two-dimensional ensembles of dipolar interacting nanoparticles with large uniaxial perpendicular anisotropy is studied by a numerical method and within the mean-field approximation. The role that the correlation effects in the presence of a bias magnetic field and taking into account the lattice structure play in magnetic relaxation is revealed
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