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Size Effect of Ferroelectric and Ferromagnetic Properties of Bi-based Perovskite Type Materials

Published online by Cambridge University Press:  10 February 2011

H. Tabata ,
K. Ueda  and
T Kawai
H. Tabata
Affiliation:
Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, JapanTabata@sanken.osaka-u ac jp
K. Ueda
Affiliation:
Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, Japan
T Kawai
Affiliation:
Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, Japan
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Abstract

Bismuth-based-layer-structured ferroelectric films have been formed epitaxially on Nb-doped SrTiO3 substrates by pulsed laser deposition (PLD). These films show an atomically smooth surface with a wide terrace of 100 nm∼200 nm, as observed by atomic force microscopy (AFM) which is ideal for measuring such properties. Thin films of (Bi0.7, Ba0.) (Fe0.7, Ti0.3)O3 exhibit both ferroelectric and ferromagnetic (weak ferromagnetism) properties at room temperature. In these samples, a size effect is discussed at the same time.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 541: Symposium O – Ferroelectric Thin Films VII , 1998 , 437
Copyright
Copyright © Materials Research Society 1999

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References

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