Magnetic Relaxation in Bismuth Ferrite Micro-Cubes
Abstract
The process of magnetic relaxation was studied in bismuth ferrite BiFeO3 multiferroic micro-cubes obtained by means of microwave assisted Pechini process. Two different mechanisms of relaxation were found. The first one is a rapid magnetic relaxation driven by the domain reorientations and/or pinning and motion of domain walls. This mechanism is also responsible for the irreversible properties at low temperatures. The power-law decay of the magnetic moment confirms that this relaxation takes place in the system of weakly interacting ferromagnetic or superferromagnetic domains. The second mechanism is a longterm weak magnetic relaxation due to spin glass-phase.
Cite
@article{arxiv.1210.0765,
title = {Magnetic Relaxation in Bismuth Ferrite Micro-Cubes},
author = {B. Andrzejewski and K. Chybczynska and K. Pogorzelec-Glaser and B. Hilczer and T. Tolinski and B. Leska and R. Pankiewicz and P. Cieluch},
journal= {arXiv preprint arXiv:1210.0765},
year = {2013}
}
Comments
7 pages, 8 figures, proceedings of ISAF ECAPD PFM 2012 Conference, Aveiro, Portugal