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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

Information

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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