Magnetic properties and magnetoelectric coupling enhancement in Bi5Ti3FeO15 ceramics

In this study, pure and single-phase Bi5Ti3FeO15 (BTFO) ceramics were prepared by the standard solid-state sintering method. Magnetic and Mössbauer spectroscopy measurements revealed the paramagnetic behaviour of the material down to 3.7K. However, the measurements of the magnetoelectric (ME) effect...

Full description

Saved in:
Bibliographic Details
Published in:Ceramics international 2017-10, Vol.43 (14), p.11442-11449
Main Authors: Pikula, T., Dzik, J., Guzdek, P., Mitsiuk, V.I., Surowiec, Z., Panek, R., Jartych, E.
Format: Article
Language:English
Subjects:
C. Magnetic properties
D. Perovskites
Magnetoelectric effect
Mössbauer spectroscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, pure and single-phase Bi5Ti3FeO15 (BTFO) ceramics were prepared by the standard solid-state sintering method. Magnetic and Mössbauer spectroscopy measurements revealed the paramagnetic behaviour of the material down to 3.7K. However, the measurements of the magnetoelectric (ME) effect proved the existence of a strong ME coupling in the samples. It was shown that the optimisation of BTFO production process and applying additional electrical poling to the material at elevated temperature allowed a significant increase in the strength of ME coupling. Mössbauer spectroscopy measurements revealed a distribution of the quadruple splitting values because of the location of iron ions in different, symmetrically non-equivalent positions in the crystalline lattice. It is assumed that the presence of ME coupling in the paramagnetic-like BTFO compound is caused by the clustering of Fe3+ ions in the perovskite-like lattice.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2017.06.008