Aging and rejuvenation effects in bismuth ferrite micro-cubes

Author

B. Andrzejewski;K. Chybczyńska;K. Pogorzelec-Glaser;B. Hilczer;B. Łęska;R. Pankiewicz;P. Cieluch

Author_Institution

Institute of Molecular Physics, Polish Academy of Sciences, Poznań

fYear

2012

fDate

7/1/2012 12:00:00 AM

Firstpage

1

Lastpage

4

Abstract

The slow dynamics of magnetization manifesting in the effects of ageing and rejuvenation was studied in bismuth ferrite BiFeO₃ multiferroic micro-cubes obtained by means of microwave assisted Pechini process. It was found that in the low temperature range, the samples exhibited irreversible magnetization vs. temperature or magnetic field and the aging and rejuvenation effects. The power-law dependence of magnetic moment decay indicated that the reconformations and/or pinning of walls of weak ferromagnetic domains make a more plausible explanation of magnetic properties of BiFeO₃ multiferroic than the canonical spin-glass mechanism.

Keywords

"Magnetic moments","Magnetic domains","Aging","Magnetic properties","Temperature measurement","Magnetic fields","Magnetoelectric effects"

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp

ISSN

1099-4734

Print_ISBN

978-1-4673-2668-1

Electronic_ISBN

2375-0448

Type

conf

DOI

10.1109/ISAF.2012.6297811

Filename

6297811