English

Phase diagram of a three-dimensional dipolar model on a FCC lattice

Materials Science 2020-11-11 v2

Abstract

The magnetic phase diagram at zero external field of an ensemble of dipoles with uniaxial anisotropy on a FCC lattice is investigated from tempered Monte Carlo simulations. The uniaxial anisotropy is characterized by a random distribution of easy axes and its magnitude λu\lambda_u is the driving force of disorder and consequently frustration. The phase diagram, separating the paramagnetic, ferromagnetic, quasi long range ordered ferromagnetic and spin-glass regions is thus considered in the temperature, λu\lambda_u plane. This system is aimed at modeling the magnetic phase diagram of supracrystals of magnetic nanoparticles.

Keywords

Cite

@article{arxiv.2011.00879,
  title  = {Phase diagram of a three-dimensional dipolar model on a FCC lattice},
  author = {V. Russier and Juan J. Alonso and I. Lisiecki and A. T. Ngo and C. Salzemann and S. Nakamae and C. Raepsaet},
  journal= {arXiv preprint arXiv:2011.00879},
  year   = {2020}
}

Comments

20 pages, 11 figures