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Synthesis and Characterization of Multiferroic Composites Based on Manganate Perovskite Ceramics

Published online by Cambridge University Press:  01 February 2011

Gonbao Song ,
Jian Li  and
Andrei Kholkin
Gonbao Song
Affiliation:
gbsobg931@yahoo.com.cn, University of Aveiro, DECV and CICECO, Aveiro, 3810-193, Portugal
Jian Li
Affiliation:
lijian@ua.pt, DECV and CICECO, Aveiro, 3810-193, Portugal
Andrei Kholkin
Affiliation:
kholkin@ua.pt, University of Aveiro, DECV and CICECO, Aveiro, 3810-193, Portugal
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Abstract

In this paper, phase separation and crystal structure of (x) La0.625Sr0.375MnO3 − (1-x) LuMnO3 system (LSMO-LMO), and (1-x) La0.9Ca0.1MnO3-(x) LuMnO3 system (LCMO-LMO) were studied by XRD and SEM. The results confirm that there are solid solutions in both of these two systems. There is a solid solution of monoclinic phase of space group P1121/a for x=0.980∼1.0 in LSMO-LMO system. There is a solid solution of hexagonal phase of space group P63cm for x=0.0∼0.24 in LCMO-LMO. Selected compositions were tested in terms of their magnetization, dielectric constant and ferroelectric properties at low temperatures.

Keywords

magnetoresistance (magnetic)phase transformationcomposite
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1034 , 2007 , 1034-K03-65
Copyright
Copyright © Materials Research Society 2008

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