Ferroic properties of Fe-doped and Cu-doped K0.45Na0.49Li0.06NbO3 ceramics

• DOI: 10.1007/s10854-015-3257-z
• Publication Date: 2015-05-30T11:28:01Z
• Authors: Laijun Liu; Danping Shi; Longlong Fan; Jun Chen; Guizhong Li; Liang Fang; Brahim Elouadi
• Keywords: Diamagnetism

Ferroelectric and magnetic properties of Fe-doped K0.45Na0.49Li0.06NbO3 (KNLN) and Cu-doped KNLN ceramics were investigated. Comparing with pure KNLN ceramic, Fe-doped KNLN shows ferromagnetic and ferroelectric properties simultaneously while Cu-doped KNLN shows stronger diamagnetic and ferroelectric properties. The magnetic property in KNLN matrix are believed to be induced by point defects. The ferromagnetism of Fe-doped KNLN can be explained by the F-center exchange mechanism, while the antiferroelectric-like loop and diamagnetism of Cu-doped KNLN was explained by the special defect structure and Cu1+ ion at A site.<br/>14 pages, 5 figures,1 Table<br/>