logotype

New insights into the magnetic properties of the Ca2Fe2O5 ferrite

Research Area: Uncategorized Year: 2007
Type of Publication: Article
Authors:
Journal: SOLID STATE SCIENCES Volume: 9
Number: 6 Pages: 515-520
Month: June
ISSN: 1293-2558
Abstract:
Ca2Fe2O5 powder samples, undoped and doped with Na+, Mg2+, Al3+, Ti4+, Ge4+, were prepared with different synthesis routes to investigate the origin of the weak ferromagnetic component reported in literature for calcium ferrite single crystals. XRPD and EPR measurements have shown the presence of Fe3O4 magnetite as impurity phase in all the samples. This ferrimagnetic phase deeply influences the magnetic behavior with features very similar to those reported in literature for Ca2Fe2O5, both powders and single crystals. Our results support the hypothesis that the weak ferromagnetic component observed in Ca2Fe2O5 can be also due to the presence of magnetite impurity traces in the samples. (C) 2007 Elsevier Masson SAS. All rights reserved.
[ Back ]
Copyright © CSGI 2012 - Credits - Cookie Policy - Privacy - Consorzio per lo Sviluppo dei Sistemi a Grande Interfase, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy