Magnetic phase diagram of interacting nanoparticle systems under the mean field model
Disordered Systems and Neural Networks
2015-05-27 v1 Strongly Correlated Electrons
Abstract
The disordered random-anisotropy magnetic nanoparticle systems with competing dipolar interactions and ferromagnetic exchange couplings are investigated by Monte Carlo simulations. Superspin glass (SSG) and superferromagnetic (SFM) behaviors are found at low temperatures depending on the interactions. Based on the mean field approximation, the Curie-Weiss temperature TCW = 0 is suggested as the phase boundary between the SSG systems and the SFM systems, which is convinced by the spontaneous magnetizations and relaxations. The magnetic phase diagram is plotted.
Keywords
Cite
@article{arxiv.1101.4061,
title = {Magnetic phase diagram of interacting nanoparticle systems under the mean field model},
author = {Zhongquan Mao and Xi Chen},
journal= {arXiv preprint arXiv:1101.4061},
year = {2015}
}
Comments
11 pages, 4 figures, 1 table