Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/10182
Title: The magnetic structures and transitions of a potential multiferroic orthoferrite ErFeO3
Authors: Deng, G
Guo, P
Ren, W
Cao, S
Maynard-Casely, HE
Avdeev, M
McIntyre, GJ
Keywords: Rare earths
Magnetic properties
Neutron diffraction
Antiferromagnetism
Ferromagnetism
Spin
Issue Date: 29-Apr-2015
Publisher: AIP Publishing
Citation: Deng, G., Guo, P., Ren, W., Cao, S., Maynard-Casely, H. E., Avdeev, M., & McIntyre, G. J. (2015) The magnetic structures and transitions of a potential multiferroic orthoferrite ErFeO3. Journal of Applied Physics 117(16), 164105. doi:10.1063/1.4919367
Abstract: Rare-earth orthoferrites are very interesting due to their appealing optical and multiferroic properties. In this study, the magnetic structures and transitions of a typical rare-earth orthoferrite, ErFeO3, have been reinvestigated in detail. The spin-reorientation transition of the Fe3+ magnetic phase and the low-temperature magnetic ordering of Er3+ were observed by neutron powder diffraction. The corresponding magnetic structures have been solved anew by symmetry analysis and refinement of the diffraction results. The magnetic moments of Fe3+ align in an antiferromagnetic way along the c axis with a weak ferromagnetic component along the b axis below the Néel temperature and above the spin-reorientation transition. Below the spin-reorientation transition, the Fe3+ moments rotate into an antiferromagnetic ordering state along the b axis with weak ferromagnetic alignment along the c axis. The spin-reorientation takes place in the bc plane. The Er3+ moments align antiferromagnetically with a Cy mode below 4.5 K. For the Fe3+ moments, an additional Cx mode is induced by the ordering of the Er3+ moments. Namely, they change from GyFz mode into CxGyFz mode in the Pnma space-group setting. This study resolves the long-lasting dispute about the magnetic structure of ErFeO3 at low temperature. © 2015 AIP Publishing LLC.
URI: https://doi.org/10.1063/1.4919367
https://apo.ansto.gov.au/dspace/handle/10238/10182
ISSN: 1089-7550
Appears in Collections:Journal Articles

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.