Magnetic interactions in the monoclinic ludwigite Cu2FeO2BO3

Authors
Continentino, MA Fernandes, JC Guimares, RB Borges, HA Sulpice, A Tholence, JL Siqueira, JL da Cunha, JBM dos Santos, CA
Citation
Ma. Continentino et al., Magnetic interactions in the monoclinic ludwigite Cu2FeO2BO3, EUR PHY J B, 9(4), 1999, pp. 613-618
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
9
Issue
4
Year of publication
1999
Pages
613 - 618
Database
ISI
SICI code
1434-6028(199906)9:4<613:MIITML>2.0.ZU;2-3
Abstract
The system Cu2FeO2BO3 is an oxyborate belonging to the family of the ludwig ites. In this paper we present AC susceptibility, magnetization measurement s and Mossbauer spectroscopy on this material which allows for a complete c haracterization of its complex magnetic behavior. We find an hierarchy of i nteractions which clearly defines three regimes with decreasing temperature . These are associated with, the freezing of the Fe moments, the antiferrom agnetic ordering of the Cu sub-lattice and finally the coupling between bot h systems.